Switching to the 135W Stubby LED Corn Lamp means cutting energy costs by up to 80% while enjoying brighter, longer-lasting illumination. Designed to replace traditional 400–500W HID fixtures, it offers superior efficiency and reliability for both indoor and outdoor settings. With over 50,000 hours of lifespan and eco-friendly construction free of mercury or glass, this lamp is the smart choice for businesses and facilities seeking sustainable, low-maintenance lighting solutions.
The Youlumi YL-C135 Stubby 135W LED corn lamp delivers up to22,275 lumens (efficacy up to 165 lm/W) for reliable HID retrofits. Selectable 2700–6500K CCT and E39/EX39 bases make it a drop-in upgrade for most fixtures. Designed for enclosed luminaires with active cooling and built-in 4 kV surge protection, the YL-C135 reduces energy and maintenance costs across industrial, commercial, and outdoor sites.

Retrofits 400–550W MH/HPS with up to 80% energy savings.
Up to 22,275 lm at 165 lm/W for bright, even coverage.
2700K / 3000K / 4000K / 5000K / 5700K / 6500K for flexible applications.
100–277V AC or 300–480V AC (ballast bypass required).
Intelligent thermal protection with active cooling fan.
Shatter-resistant build and integrated 4 kV surge protection.
L70 > 50,000h; ETL certified.
For enhanced safety and light diffusion.

| Model | Watts | Input Voltage | CCT | Lumens | Efficacy (lm/W) | CRI | HID Replaces | Base & Dimensions | Certification |
|---|---|---|---|---|---|---|---|---|---|
| YL-C135SG4 | 135W | 100–277V AC | 2700–6500K | 22,275 | 165 | ≥80 | 400–550W | E39/EX39 132×240 mm (5.20×9.45 in) | ETL |
| YL-C135HSG4 | 135W | 300–480V AC | 2700–6500K | 22,275 | 165 | ≥80 | 400–550W | E39/EX39 132×240 mm (5.20×9.45 in) | ETL |
| YL-C135SCG4 | 135W | 100–277V AC | 2700–6500K | 21,600 | 160 | ≥80 | 400–550W | E39/EX39 132×245 mm (5.20×9.65 in) | N/A |
| YL-C135HSCG4 | 135W | 300–480V AC | 2700–6500K | 21,600 | 160 | ≥80 | 400–550W | E39/EX39 132×245 mm (5.20×9.65 in) | ETL |
Note: Ballast bypass required (connect directly to line voltage).

Retrofit 400–550W HID fixtures in aisles, assembly lines, and storage areas.
Achieve up to 80% energy and maintenance savings.

Bright, reliable illumination for parking garages, loading docks, and transit hubs.
Improves visibility, safety, and security.

Ideal for gyms, showrooms, and exhibition halls with high ceilings.
Provides a bright, inviting atmosphere for customers.

Post-tops, wall packs, and area lights for municipalities and campuses.
50,000h lifespan reduces service and replacement costs.
Yes, this LED corn bulb is designed as a retrofit replacement for MH and HPS lamps. For safe operation and maximum lifespan, the existing ballast should be removed or bypassed. The bulb includes an integrated driver, allowing you to connect directly to standard line voltage.
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.
