Designed for construction sites, warehouses, shipyards, and large industrial projects, YouLumi LED String Lights deliver bright, durable, and energy-efficient illumination. With IP65 waterproof protection and ETL safety certification, they ensure reliable performance even in the most demanding working conditions.
Product Highlights
100 Foot Model
Illuminate construction sites, warehouses, and shipyards with Youlumi 100ft construction string lights—a rugged, IP65 and ETL temporary lighting solution aligned with OSHA/NEC practices for fast, reliable, large-area illumination.
Per head: 12/16/18/20W → up to 2,400 lm • Spacing: ~10 ft (3.0 m) • Length: 100 ft for expansive coverage.
Construction-grade cords (SJTW 14/3, 16/3, 18/3 and SOOW 14/3C, 16/3C) with low-glare frosted optics. IP65 weather protection and ETL listing support compliant use under OSHA/NEC. Integrated steel hooks speed installation on scaffolds, ceilings, and walls.

100–277 VAC, 50/60 Hz for global job sites.
10 heads × 12/16/18/20W → 15,000–24,000 lm at only 120–200W.
Frosted lenses soften light and reduce harsh glare.
SJTW/SOOW cords; steel hooks for secure mounting.
IP65; ETL listed for professional use.
Connect up to 3 strings in series for larger zones.

Choose orange/yellow for high visibility in busy zones, or black for a clean, discreet warehouse look.
This table summarizes the regular series. Values per head unless noted.
| Model No. | Watts | Input Voltage | CCT (K) | Lumens | PF | Product Dim. | Total Length | Heads | Certificate |
|---|---|---|---|---|---|---|---|---|---|
| YL-HA11-5*20W-M-XXK-3P | 5 × 20W | 100–277V | 2700–6500 | 2,400 × 5 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 15.78 m / 51.77 ft | 5 | ETL |
| YL-HA11-10*20W-M-XXK-3P | 10 × 20W | 100–277V | 2700–6500 | 2,400 × 10 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 31.30 m / 102.69 ft | 10 | ETL |
| YL-HA11-5*20W-M-XXK-EU | 5 × 20W | 100–277V | 2700–6500 | 2,400 × 5 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 16.78 m / 55.05 ft | 5 | ETL |
| YL-HA11-10*20W-M-XXK-EU | 10 × 20W | 100–277V | 2700–6500 | 2,400 × 10 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 32.30 m / 105.97 ft | 10 | ETL |
| YL-HA11-5*20W-M-XXK-UK | 5 × 20W | 100–277V | 2700–6500 | 2,400 × 5 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 16.78 m / 55.05 ft | 5 | ETL |
| YL-HA11-10*20W-M-XXK-UK | 10 × 20W | 100–277V | 2700–6500 | 2,400 × 10 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 32.30 m / 105.97 ft | 10 | ETL |
| YL-HA11-5*20W-M-XXK-JP | 5 × 20W | 100–277V | 2700–6500 | 2,400 × 5 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 16.78 m / 55.05 ft | 5 | ETL |
| YL-HA11-10*20W-M-XXK-JP | 10 × 20W | 100–277V | 2700–6500 | 2,400 × 10 | ≥0.9 | 188 × 120 mm 7.40″ × 4.72″ | 32.30 m / 105.97 ft | 10 | ETL |
Request a detailed quote and share your project requirements.
Choose CCT (2700–6500 K), plug type, tripod options, and quantity.
Finalize price and lead time, then proceed to manufacturing.
Arrange shipping, inspection, and receive full technical support and 5-year warranty.





Continuous runs along site boundaries with fewer connections.
Consistent illumination down extended storage rows.
Perfect for festivals or markets needing broad, uniform light.
Ideal for ceiling spans that benefit from longer strings.
Reliable lighting for loading docks, container stacks, and logistics zones.
Durable illumination for new builds, dry docks, and offshore work.
Yes. You can safely link up to three 100 ft strings in series for extended coverage. Always stay within your circuit’s rated amperage and follow OSHA/NEC electrical codes, using proper waterproof connectors and strain relief.
Absolutely. Each light is IP65-rated for dust and water resistance and ETL-listed for safety compliance, making them ideal for construction sites, shipyards, warehouses, and other demanding environments.
Each LED head is selectable at 12 W, 16 W, 18 W, or 20 W, delivering up to 2,400 lumens. Heads are spaced about 10 ft (≈3 m) apart, and a full 10-head, 100 ft string outputs 15,000 – 24,000 lumens in total.
Yes, we offer full OEM/ODM services, including logo printing, packaging design, wavelength configuration, and product design adjustments to meet the needs of clinics, retailers, and distributors.
We provide comprehensive after-sales service and distributor support, including product training, operation manuals, marketing materials, and technical consultation to help partners quickly enter the market and increase sales.
