Views: 0 Author: Site Editor Publish Time: 2026-08-14 Origin: Site
If you are a Vietnamese lighting brand building a private-label solar range, an EPC contractor bidding on EVN or provincial rural-road tenders, or a distributor importing solar street light Vietnam projects that must survive 40°C tropical heat and six months of monsoon rain — this guide was written for you. We are Zhongshan Sunde Lighting, a 15-year OEM/ODM factory with 50+ completed government projects across Southeast Asia, and in the pages below we share the exact specifications, climate engineering, certifications, and sourcing pitfalls that decide whether a Vietnamese solar installation lasts 7 years or fails in 7 months. No fluff — only the technical and commercial data our engineers use every day for monsoon-proof solar street light shipments.
Solar Street Light Vietnam Specifications: Tropical Heat & Monsoon-Rated
Common Pitfalls When Sourcing Solar Street Lights for Vietnam
Vietnam is one of the fastest-growing economies in Southeast Asia, yet its electricity infrastructure still struggles to keep pace. Power demand grew by nearly 10% per year over the last decade, and the national utility EVN has repeatedly faced supply pressure during the hot season. More importantly for lighting buyers: only around 70% of rural communes were fully electrified in the early 2020s, and thousands of villages in the northern highlands, central highlands and Mekong Delta still rely on grid extensions that are slow, costly and vulnerable to storms.
The government response has been decisive. The National Power Development Plan VIII (PDP8) prioritizes distributed renewable energy, and provincial rural-development programs — including the National Target Program on New Rural Development — now allocate dedicated budgets for solar street lighting in commune roads, village squares, schools and markets. Vietnam's solar resource is excellent: the central and southern regions receive 4.5–5.5 kWh/m²/day of irradiation, which makes a well-designed off-grid solar street light economically superior to trenching grid cable in rural areas. Finally, climate change is raising the stakes: longer heat waves push conventional grid equipment to failure, while more intense monsoon floods cut power for days. A tropical solar street light built for this environment is not a luxury — it is now the standard specification in Vietnamese tenders.
Buyers who source the same solar street light for Vietnam as for European or Middle Eastern projects make the most expensive mistake in this market. Vietnam's climate is a combined stress test: ambient temperatures of 35–40°C in summer (with pole-head surface temperatures above 65°C), relative humidity of 80–95% for months, 1,500–2,500 mm of annual rainfall concentrated in the May–October monsoon, and coastal salt air in the 3,260 km coastline provinces. Each parameter attacks a different component — and each requires a specific engineering answer. Below is the specification table SUNDE uses as the minimum baseline for Vietnamese projects.
Component | Commodity Spec (fails in VN) | SUNDE Vietnam-Rated Spec | Why It Matters |
|---|---|---|---|
IP rating | IP65 | IP66 waterproof housing + IP67 battery compartment | Monsoon rain is wind-driven; IP65 lets moisture creep past gaskets in 3–5 years |
Operating temperature | −10°C to +45°C | 45°C tropical working temperature, tested at 55°C ambient in aging chamber | Battery derating and driver derating are the top failure causes in tropical heat |
Housing | Plain die-cast aluminum | Die-cast ADC12 + anti-corrosion coating (powder coat + anodized layer), salt-spray tested 480h | Humidity + salt air corrode uncoated aluminum in coastal provinces like Da Nang and Vung Tau |
LED chips | Generic 2835 | Lumileds 5050, 160 lm/W, CCT 3000K–6500K options | Lumen maintenance of 90% at 50,000h keeps Vietnamese roads compliant with lighting standards |
Battery | Lead-acid / gel | LiFePO4 3.2V cells, 2,000+ cycles at 45°C, built-in BMS | Lead-acid loses 40%+ capacity in high heat and dies in 18–24 months; LiFePO4 lasts 8–10 years |
Controller | PWM | MPPT 97% efficiency, smart dimming, over-discharge protection | MPPT recovers 15–25% more energy in overcast monsoon conditions than PWM |
Solar panel | Monocrystalline 21% | Monocrystalline PERC ≥ 22.5%, 3.2mm tempered glass, anti-dust coating | Overcast days are common in monsoon; higher cell efficiency = more backup autonomy |
Fasteners & seals | Carbon steel screws | Stainless steel 304 screws, silicone double gaskets, breather valve | Prevents galvanic corrosion and internal condensation fogging of the lens |
Vietnam's spec sheets from EVN and provincial DOTs increasingly state a maximum working temperature of 45°C or higher. This is not about the ambient air — it is about internal temperatures. On a 38°C day, the inside of a dark aluminum housing in direct sun can exceed 65°C. Lithium battery cells degrade twice as fast for every 10°C above 25°C, so a battery rated 2,000 cycles at 25°C may deliver only 600 cycles in a badly ventilated Vietnamese installation. SUNDE addresses this with three layers of thermal management: a vented, finned housing that dissipates heat from the driver and battery compartment; a battery derating curve validated in our 55°C aging chamber; and a smart controller that automatically reduces discharge current at high cell temperatures. The result is a monsoon-proof solar street light that still delivers its rated backup autonomy (normally 2–3 consecutive rainy days) at the end of its eighth year.
During the May–October rainy season, central and northern Vietnam can see 10–15 consecutive overcast days. A PWM controller simply chops the panel voltage and wastes up to 25% of available energy; an MPPT controller tracks the maximum power point continuously and converts it at up to 97% efficiency. Over a full year in Hue or Quang Binh, the energy harvested difference between a 97% MPPT and a standard PWM system is roughly 18–22% — often exactly the margin that keeps a 60W fixture lit for 10 hours on a rainy night. Every SUNDE solar street light for Vietnam ships with MPPT 97% efficiency as standard, and our lighting design engineers (15 professional designers on staff) size the panel and battery around the worst monsoon month, not the annual average.
Specification bottom line for Vietnamese buyers: insist on IP66 waterproof rating, LiFePO4 chemistry, MPPT controller, Lumileds 5050 chips, and a written salt-spray test report. Anything less is a commodity light designed for a different climate — and it will cost you more in replacements than the premium you saved.
Vietnam's monsoon is not a single event — it is a five-to-six-month season of daily downpours, 85–95% humidity, flooding, and occasional typhoons that make landfall on the central coast. A solar street light manufacturer Vietnam partners choose must engineer for the season as a whole, not for a single rainstorm. This section explains the four climate-adapted technology pillars SUNDE builds into every fixture destined for Vietnam, and how they map to real installation conditions on the ground.
Wind-driven rain during typhoon season can force water horizontally at speeds above 80 km/h. This is precisely the condition where an IP65-rated fixture fails: its gasket is designed for vertical rain only. SUNDE's IP66 waterproof housing uses a three-stage sealing architecture — a compression-fit silicone gasket on the main lid, a second internal gasket around the driver cavity, and a fully potted (resin-encapsulated) controller board. Every unit is 100% tested: we run an actual water-jet test on each production line sample and an IP66 chamber test on a batch level before shipment. The battery compartment is sealed to IP67 because in flood-prone areas the pole base can sit in water for hours; connectors are IP68-rated waterproof aviation plugs rather than bare terminals that corrode in humidity.
Tropical heat and humidity create two silent killers: battery derating and internal condensation. On the heat side, the housing is designed with a finned aluminum body that maximizes surface area for passive convection, keeping the battery cell temperature 8–12°C below the housing exterior. The LiFePO4 pack itself is speced with a conservative operating window and a BMS that communicates with the MPPT controller; when cell temperature exceeds 55°C, the controller cuts discharge current rather than risk cell damage. On the humidity side, each fixture includes a waterproof breather valve (Gore-style membrane) that equalizes internal pressure as the day heats and cools. Without it, the classic "fogged lens" failure appears — moisture is sucked in overnight, condenses on the glass, and permanently reduces light output by 30–50%. Our aging chamber tests run 1,000 thermal cycles at 85% RH to verify no condensation forms.
Humidity above 80% for months at a time is the ideal growth environment for mold on housing surfaces, gaskets and cable glands, and for electrolytic corrosion where dissimilar metals touch. SUNDE applies a three-layer anti-corrosion system to all Vietnam-destined fixtures: (1) an anodized layer on the die-cast aluminum, (2) an outdoor-grade polyester powder coating (thickness ≥ 60 µm), and (3) stainless steel 304 fasteners throughout. The same principle applies to the solar panel frame and mounting brackets. Our salt-spray testing to 480 hours simulates five years of coastal exposure in provinces like Khanh Hoa or Ba Ria-Vung Tau. For projects within 5 km of the coast, we can upgrade to marine-grade stainless hardware and an additional ceramic topcoat — a low-cost option that we strongly recommend for island and peninsula sites.
The Mekong Delta and central river basins flood every monsoon season, with water levels rising 0.5–1.5 m above road level in extreme years. Fixtures and wiring installed below flood level will fail or create electrical hazards. For these zones we specify: battery compartments and junction boxes mounted above the expected flood line (typically 3 m+ on the pole); fully sealed underground cable runs with IP68 connectors; hot-dip galvanized poles (coating ≥ 85 µm) with a sacrificial anode option for brackish floodwater; and concrete foundations with anchor cages instead of direct burial, so the pole stays upright when saturated soil softens. In floating market and canal-side applications, we have delivered pole designs with elevated control boxes at 4 m and stainless steel cable ladders — details that a generalist supplier simply will not think of unless they have served the Mekong market.
Engineering rule of thumb: for every Vietnam project, design for the 10 worst days of the year, not the average day. That single principle drives our battery autonomy of 2–3 rainy days, our flood-line installation drawings, and our 480-hour salt-spray standard.
Government procurement is the backbone of the Vietnamese solar street light market, and it is a structured, regulated landscape that rewards suppliers who understand it. Understanding the buyer landscape is essential for any solar street light manufacturer Vietnam agencies trust — and every Vietnamese government solar project follows a published procurement procedure that rewards prepared suppliers. Four channels dominate: EVN (Vietnam Electricity) infrastructure works, provincial and district solar programs, the National Target Program on New Rural Development (NTM), and international donor projects. Each has its own procurement rules, documentation requirements, and quality expectations.
EVN and its regional power companies (EVNSPC, EVNNPC, EVNHANOI, etc.) run road lighting programs on national highways, urban streets and rural grid-renewal corridors. These tenders are usually published on the National Procurement Portal (muasamcong.mpi.gov.vn) and follow the Law on Public Procurement 2023. Winning bids emphasize: certified quality (QCVN / TCVN compliance), long warranty terms (3–5 years), proven reference projects, and local after-sales presence. A foreign factory partner like SUNDE is most competitive here through a Vietnamese distributor or JV partner who handles local registration, while we supply the product and the complete technical dossier — test reports, drawings, bilingual manuals — required for evaluation.
Since 2021, dozens of provinces — Nghe An, Thanh Hoa, Quang Nam, Ben Tre, An Giang, Dak Lak among them — have launched solar street lighting programs funded partly by provincial budgets and partly by the national NTM program. These projects typically cover 50 to 500 units per phase: commune roads, village squares, schools, markets, and cultural houses. Unit budgets are moderate but volumes are steady, and repeated phases mean a supplier who performs well in phase one is strongly positioned for phases two and three. Tenders at this level are decided on price, quality documentation, and delivery speed — precisely the profile where factory-direct OEM pricing and 100% on-time delivery (0 delays for 5 consecutive years at SUNDE) win.
The World Bank, ADB, JICA, KOICA and German development cooperation finance rural electrification and climate-adaptation lighting in Vietnam, particularly in the Mekong Delta (climate resilience) and northern highlands (rural access). These projects are the most demanding: full environmental and social documentation, strict environmental test standards, payment against verified milestones, and usually 3–5 years of warranty service. SUNDE has supplied fixtures for donor-funded programs elsewhere in Southeast Asia and maintains the documentation packages — IES files, test certificates, factory audits — that EPC contractors need to qualify.
Pre-qualification: register on the procurement portal, prepare company profile, certificates and references.
Tender publication: bids state required wattage, mounting height, IP rating, battery autonomy and certification — our engineers match our standard Vietnam line or design a custom variant.
Sample evaluation: most state tenders require physical samples or detailed datasheets with photos; SUNDE ships pre-production samples within 2–4 weeks.
Award & contract: successful bidders sign with delivery milestones; our 2-hour response SLA keeps your documentation questions moving during evaluation.
Delivery & acceptance: 100% product testing at our factory, bilingual inspection reports, and installation support for 500+ unit orders.
If you are an EPC contractor or distributor competing in Vietnamese government tenders, our factory can act as your silent manufacturing partner: OEM solar lighting Vietnam projects can be branded to your company, documented in Vietnamese, and shipped with all test reports under your name. Contact us via the CTA at the end of this guide to request a tender-support pack.
Vietnam has a fast-growing class of professional lighting brands — companies that import white-label solar lighting, build distribution in Hanoi, Da Nang and Ho Chi Minh City, and sell to contractors and municipalities under their own trademark. For these brands, the choice of OEM/ODM partner determines whether they build a defensible product line or simply resell commodity goods. Over 15 years, SUNDE has helped establish 60+ overseas clients as renowned brands in their home markets, and the Vietnam playbook is the same one that built successful solar brands across Southeast Asia, Latin America and Africa.
Private-label manufacturing: your logo, your brand name, your packaging and your Vietnamese-language labeling — including Vietnamese technical stickers, Vietnamese manuals and bilingual carton printing.
Exclusive designs & mold ownership: our 15 professional designers work with you on form, color and features; private molds are self-developed by SUNDE, and we offer exclusive agency terms so a design you fund is not sold to your competitors.
New product pipeline: we launch 5 new products per quarter, so your Vietnam catalog can refresh continuously with the latest Lumileds chips, MPPT controllers and smart features.
Custom specifications: CCT selection (3000K/4000K/6500K for Vietnamese standards), battery autonomy of 2–5 rainy days, pole matching, smart dimming profiles and even IoT remote-management options.
Market protection & exclusive agency: for Vietnam, we structure exclusive agency agreements that reserve the Vietnamese market for your brand, and we refuse to quote your protected SKUs to other buyers — a commitment we have honored for 15 years.
A typical brand journey runs in three phases. Phase one: a mixed container of 500–2,000 units across 4–6 SKUs — all-in-one solar street lights from 30W to 120W, plus solar flood lights for gates and yards — establishing your range with distributors in three cities. Phase two: after sell-through data, you trim to 2–3 best sellers, add custom branding and Vietnamese packaging, and expand to 5,000+ unit quarterly volumes. Phase three: you enter government-adjacent channels with a certified, documented product line. Our factory supports every phase with the same 100% product testing protocol, 20+ production lines and 35,000 PCS daily capacity, so brand growth is never limited by supply.
For Vietnamese brands: ask every OEM supplier three questions before signing — (1) Will you sign a market-protection clause for Vietnam? (2) Can you print Vietnamese labeling and supply Vietnamese manuals? (3) Can you provide CR/QCVN documentation support? If any answer is vague, keep shopping. SUNDE answers yes to all three, in writing.
Beyond standard street lights, our ODM team customizes for Vietnamese niches: flood-resistant fixtures with elevated battery boxes for Mekong canal roads, marine-coated units for island resorts and ports, decorative solar lights for new urban zones in the south, and high-mast solutions for industrial parks. Because our design team and tooling are in-house, a custom variant moves from sketch to shipping sample in 4–8 weeks — fast enough to hit provincial tender windows that close in a quarter.
Certification is where Vietnamese projects are won or lost. Importing a tropical solar street light without the right documents invites customs delays, tender disqualification and, in the worst case, fines under Decree 98/2020/ND-CP on administrative penalties in trade. The compliance picture has three layers: mandatory Vietnamese conformity, internationally recognized quality marks, and project-specific documentation.
The CR (Conformity of Regulation) mark is the mandatory conformity mark for regulated products in Vietnam, issued by Vietnamese conformity assessment bodies under the Ministry of Science and Technology's regulations. For lighting products, the applicable technical regulations fall under the QCVN system — QCVN 19 (electrical safety) and related EMC regulations apply to many imported electrical products. The importer of record in Vietnam — your distributor or brand — is responsible for CR certification with a local body, and the certificate must be renewed periodically. The practical implication for sourcing: choose a factory that can provide complete test reports and technical files (schematics, component certificates, factory inspection documentation) so your Vietnamese partner can complete CR registration quickly instead of spending months reverse-engineering the product. QCVN compliance is increasingly written into provincial tender requirements, so a supplier that treats "we don't do Vietnam paperwork" as acceptable is disqualifying itself.
While CR/QCVN is the local gateway, international certificates prove the underlying quality and satisfy evaluators who benchmark against regional standards. SUNDE's factory holds CE, RoHS, ISO9001, FCC, EMC, UL, CB, LVD, SAA and UKCA certifications across its product lines. For Vietnamese projects, the most frequently requested are: CE and RoHS for the EU-harmonized safety and chemical tests that Vietnamese consultants often reference; CB for international safety recognition; EMC for electromagnetic compatibility in urban installations; and ISO9001 for factory quality management in government supplier pre-qualification. Where a specific provincial tender references IEC 60598 or TCVN standards, our test lab can supply the corresponding test evidence (photometric IES files, IP/IK test reports, salt-spray reports, battery cycle data).
Commercial invoice, packing list, Bill of Lading with HS code classification for solar lamps (9405.42.00 region) — we provide verified HS guidance.
CR certificate or the full technical file needed by your local certification partner.
CE/RoHS/ISO9001 copies, plus EMC/LVD where required.
Battery transport documents: UN38.3 test summary and MSDS for LiFePO4 cells — mandatory for air or sea freight of lithium batteries.
IES photometric files and DIALux-ready data for tender lighting calculations.
Bilingual (EN/VI) user manuals and installation drawings.
Our export team ships to Vietnam routinely and prepares this pack with every order — that is what a reliable solar street light manufacturer Vietnam importers depend on. For the full catalog and certification matrix, browse our complete product range or read about our factory and quality system.
Experience is the strongest evidence we can offer a Vietnamese buyer. Over 15 years, SUNDE has completed 50+ government projects and hundreds of commercial installations across Southeast Asia, and our engineers have learned the tropical climate the hard way — by watching products perform in it for years. Below are three anonymized references that mirror the conditions Vietnamese projects face. Project details are desensitized per our clients' confidentiality agreements; full reference letters and site photos are available under NDA.
Application: 480 units of 60W all-in-one solar street lights for commune roads and village squares in a mountainous northern province. Climate challenge: 38–42°C valley heat in summer, 85%+ humidity, heavy fog and up to 15 consecutive overcast days during the rainy season. Solution delivered: IP66 waterproof housings, LiFePO4 batteries with 3-day autonomy, MPPT 97% efficiency controllers, Lumileds 5050 chips, and poles with extra-thick hot-dip galvanizing for the fog-and-rain environment. Result: all 480 units commissioned in 6 weeks; the client's third-phase order for 320 additional units arrived 14 months later with zero reported failures in the interim. The client's engineering team specifically credited the breather-valve condensation protection during winter fog season.
Application: 150 units of 80W solar street lights plus 90W solar flood lights for a resort complex and adjacent fishing port in a central coastal province. Climate challenge: salt-laden wind, sea spray, and the client's requirement for zero grid cabling on the beachfront walkway. Solution delivered: marine-grade specification with 480-hour salt-spray tested powder coating, stainless steel 304 fasteners, elevated battery compartments, and flood-line mounting heights reviewed by our engineers. Result: after two full typhoon seasons and repeated storm surges, the client reported no corrosion-related failures and reordered flood lights for a second site. This project remains one of our reference visits for coastal buyers in Da Nang and Vung Tau markets.
Application: 260 units of 100W smart solar street lights along a 9 km municipal boulevard in a tropical Southeast Asian city with monthly rainfall above 250 mm during the wet season. Solution delivered: smart MPPT controllers with time-based dimming profiles, LiFePO4 batteries sized for 3 rainy days, and remote on/off management. Result: the municipality measured a 35% energy saving versus the previous grid-fed lighting and extended the program with a 400-unit phase two. This reference demonstrates the smart-control reliability that Vietnamese municipal buyers increasingly request in 2026 tenders.
Each of these projects was manufactured under our 100% product testing protocol — solar panel, battery, waterproofing, IES photometry, aging, salt spray, package and voltage-capacitance checks on every unit. For more context on how we engineer tropical installations, see our solar street light product line and our solar flood light range.
After 15 years and hundreds of shipments, we have watched buyers repeat the same five mistakes — each costing them money, time and reputation in the Vietnamese market. Avoid them and you are already ahead of most competitors.
Buyers import fixtures designed for temperate or desert climates: uncoated housings, carbon steel screws, PWM controllers. In Vietnam's humidity, the screws rust within a year, the housing corrodes in coastal provinces, and the fixture fails at 18–30 months. The fix is a written specification: IP66 waterproof rating, anti-corrosion coating, stainless steel hardware, LiFePO4 chemistry. If a quote does not list these by name, assume they are absent.
Battery failure is the #1 cause of "dead" solar street lights in Vietnam. Lead-acid and gel batteries lose capacity rapidly above 35°C and rarely survive two rainy seasons. Worse, some suppliers rate battery cycles at 25°C and let the buyer assume that applies in Vietnam. Demand the battery spec at 45°C ambient, with the derating curve in writing, and insist on LiFePO4 with BMS protection.
"IP66" or "IP67" printed on a datasheet is not the same as tested and certified. Many commodity fixtures use cheaper gaskets that pass a bench test once and fail after a year of thermal cycling. Ask for the actual IP test report and the sealing architecture description; if a supplier cannot produce either, the rating is marketing. Our 100% testing includes a water-jet check on every production line sample.
Arriving at Cat Lai or Hai Phong port without CR/QCVN technical files, UN38.3 battery documents or correct HS classification means customs delays, storage fees and missed tender deadlines. Confirm the full documentation pack before you pay, not after your container sails.
Mounting heights, pole foundations and cable runs that work in temperate climates fail in flood zones and on saturated Mekong Delta soil. Without flood-line engineering and proper anchor cages, poles tilt, water enters junction boxes, and the whole installation fails as a system even though each component was fine. Use a supplier whose drawings account for Vietnamese flood levels, soil and typhoon exposure.
Looking ahead, the Vietnamese market will not stand still. Four trends will define demand in 2027–2028, and forward-looking brands and contractors should position now. First, smart lighting adoption: IoT-enabled solar street lights with remote monitoring, automatic dimming and fault alerts will move from pilot projects to standard municipal specifications, driven by the government's smart-city agenda in Hanoi, Da Nang and HCMC. Second, larger autonomy batteries: as climate variability lengthens monsoon spells, tenders will demand 3–5 rainy-day autonomy rather than 2, which favors LiFePO4 systems with real MPPT harvesting. Third, localization pressure: growing interest in domestic manufacturing content may favor factories with Vietnamese partners or local assembly lines; OEM importers should prepare documentation trails early. Fourth, quality consolidation: as provincial programs scale up and reference track records accumulate, commodity suppliers will be squeezed out by certified, documented products — the exact segment SUNDE serves. The buyers who win the 2027–2028 cycle are the ones who lock in a climate-engineered product line and a compliant documentation system in 2026.
If you are planning a Vietnamese project, start the conversation now — our team responds within 2 hours and prepares quotations within 24 hours of receiving your brief. Explore the full product catalog, review our 15-year factory track record, or jump straight to contact with your project details.
For standard catalog models with our brand or unbranded, the MOQ is 50 units per model, ideal for pilot projects and tender samples. For full OEM private-label production — your logo, Vietnamese packaging and exclusive mold options — the MOQ is typically 300–500 units per model, which matches a single provincial phase. We frequently start Vietnamese brand clients with a mixed container (500–2,000 units across 4–6 SKUs) so they can test the market across multiple product categories with one shipment.
Yes. All Vietnam-destined orders can be supplied with Vietnamese technical stickers, bilingual EN/VI user manuals, installation drawings and carton printing. Our multilingual sales team (EN / FR / JP) coordinates translation with your Vietnamese staff to ensure terminology matches local practice, and we provide soft copies for your CR certification documentation at no extra cost.
LiFePO4 (lithium iron phosphate), without question. It tolerates 45°C+ ambient temperatures far better than lead-acid or gel batteries, delivers 2,000+ cycles at high temperature, and contains a built-in BMS that prevents overcharge, over-discharge and thermal issues. Lead-acid batteries in Vietnam typically fail within 18–24 months; LiFePO4 packs last 8–10 years. Every tropical solar street light we ship to Vietnam is LiFePO4-based.
Standard is 2–3 consecutive rainy/overcast days at full rated hours (10–12h per night with dimming profiles). For the Mekong Delta and northern highlands, we recommend the 3–5 day autonomy option: a larger LiFePO4 pack plus our MPPT 97% efficiency controller, which harvests 15–25% more energy on overcast days than PWM systems. The exact sizing is computed per project from your site's irradiation data and road class.
You need CR conformity for regulated electrical products, based on the QCVN technical regulations, completed through a Vietnamese conformity assessment body — your local importer/brand handles this with our technical file support. Battery shipments additionally require UN38.3 test summaries and MSDS. Our factory holds CE, ROHS, ISO9001, FCC, EMC, UL, CB, LVD, SAA and UKCA, and we supply the full documentation pack with every order to speed your local certification.
Standard production is 15–25 days after deposit and approved artwork; custom ODM tooling adds 4–8 weeks. Sea freight from Zhongshan/Guangzhou to Cat Lai (HCMC) or Hai Phong takes 7–12 days; door-to-door service via our freight partners is available. For urgent tender needs, air freight of sample sets takes 4–6 days. Our 100% on-time delivery record — 0 delays for 5 consecutive years — applies to every Vietnamese shipment.
Yes. For EVN, provincial and donor-funded tenders we provide IES photometric files, DIALux-ready data, IP/salt-spray/aging test reports, factory qualification documents (ISO9001), bilingual specifications and reference letters. Many of our Vietnamese distributor clients forward the full dossier under their own name; we remain the silent manufacturing partner throughout the evaluation.
Standard warranty is 3 years on the complete fixture (solar panel, LED module, controller, housing) and 3–5 years on the LiFePO4 battery depending on model, with lifetime technical support. We promise a refund or free replacement for quality problems, and our after-sales inquiries are responded to within 2 hours. For 500+ unit projects we offer on-site installation supervision.
Yes. We sign exclusive agency agreements that reserve the Vietnamese market (or a defined region within it) for your brand, and we will not quote your protected SKUs to other buyers. This is one of the commitments that has helped establish 60+ overseas clients as renowned brands — and why our 90% customer repurchase rate persists year after year.
Standard terms are 30% deposit and 70% balance before shipment, with T/T or L/C accepted; long-term brand partners may qualify for credit terms after two years of cooperation. After-sales includes a spare-parts bank for Vietnamese models, 2-hour response to all inquiries, and multilingual support in EN / FR / JP. Every order is covered by our promise of refund or free replacement for quality problems.
Related reading: Solar Street Light Product Line | Solar Flood Light Range | LED Flood Light Range | All Products | About Us | Contact Us
Trusted by 60+ overseas brands across Southeast Asia — 90% customer repurchase rate, 100% on-time delivery with 0 delays for 5 consecutive years.
Send your project brief — country, project scale, wattage, certifications, OEM customization — and our 50+ senior engineers will prepare a complete quotation within 24 hours. All inquiries and after-sales service responded within 2 hours. Promise refund or free replacement for quality problems.
WhatsApp: +86 13777926647 ✉️ Email: admin@sundeled.com
Linda Zhang | SUNDE Export Team
Zhongshan Sunde Lighting Co., Ltd. | Alibaba Custom Manufacturer (4-year Gold Supplier, 4.6/5 rating, 100% on-time dispatch)
No.11 yuxiang dongdi street henglan town, zhongshan city guangdong province
Multilingual sales team (EN / FR / JP) | Promise refund or free replacement for quality problems
© 2026 Zhongshan Sunde Lighting Co., Ltd. | Last updated: 2026-08-14
Internal product reference: SUNDE-SL-VN-2026 | For Vietnam Market
Why SUNDE: 15 years experience in LED lighting | 20+ leading listed brands partner | 50+ government projects | CE/ROHS/ISO9001/FCC/EMC/UL/CB/LVD/SAA/UKCA certified | 160,000 m² factory with 500+ workers, 50+ senior engineers, 200+ skilled workers | 20+ production lines, 35,000 PCS daily production, one hundred million annual sales | 100% product testing (solar panel / battery / waterproof / IES / aging / salt spray / package / voltage capacitance) | 15 professional designers | 90% customer repurchase rate | 100% on-time delivery, 0 delays for 5 consecutive years | The highest consulting manufacturer for lighting categories on B2B platforms | All inquiries and after-sales responded within 2 hours | Promise refund or free replacement for quality problems
No.11 yuxiang dongdi street henglan town, zhongshan city guangdong province | WhatsApp: +86 13777926647 | ✉️ Email: admin@sundeled.com
