100 Watt Metal Halide LED Retrofit | 15500 Lumens | 400 Watt Replacement | 4000K or 5000K | 100-277V
This 100W LED retrofit is a practical replacement for 400W metal halide fixtures in warehouses and manufacturing facilities, delivering 15,500 lumens at 155 lm/W. Its 120 degree beam angle supports broad-area lighting, while 100-277V operation simplifies use across common commercial voltages. Choose 4000K or 5000K to suit the space, with optional dimming available. ETL listing, rebate eligibility, and up to 100,000 L70 hours support long-term retrofit planning.
Cory Peterson | VP of Marketing and Sales Operations




Product Specifications
Key Features
| Brand | LED Lighting Supply |
| Watts | 100 |
| Lumens | 15500 |
| Lumens Per Watt | 155 |
| Replaces | 400 Watt Metal Halide |
| Voltage | 100V-277V |
| Color Temperature | 4000K or 5000K |
| CRI | 75+ |
| Dimming | Optional |
| Beam Angles (Std) | 120° |
| Lifespan | 50,000 hours - driver | 100,000 (L70) hours |
| Frequency (Hz) | 50/60 hz |
| Power Factor | > .90 |
| THD | < 15% |
Durable Construction
| Certifications | ETL | Rebate Eligible |
Measurements
| Dimensions (in) | 6.1 L X 5.2 W X 2.75 H |
| Weight (lbs) | 4.5 lbs |
Product SKU Variations
- SKU: MLLG-LED-RETRO5-100-40
- SKU: MLLG-LED-RETRO5-100-50
Additional Resources
Product Overview
This 100-watt metal halide LED retrofit kit converts existing 400-watt metal halide fixtures to LED operation. It produces 15,500 lumens with a choice of 4000K or 5000K color temperature.
The retrofit assembly is intended for fixture retrofit projects, energy upgrade projects, legacy fixture conversion, and maintenance-driven lighting upgrades. Its compact 6.1-inch by 5.2-inch housing supports installation inside compatible existing fixture housings.
Core Performance and Output
The retrofit kit delivers 155 lumens per watt and a total output of 15,500 lumens. The standard 120-degree beam angle provides broad distribution from an existing fixture housing.
It operates on 100-277V, 50/60 Hz electrical systems. Power factor is greater than 0.90 and total harmonic distortion is less than 15%.
The 15,500-lumen output can be excessive in retrofit layouts with low mounting heights or closely spaced fixtures. Layout uniformity depends on existing fixture locations, mounting height, and the original fixture optics.
Adjustability and Control Options
This retrofit kit is available in 4000K or 5000K color temperature. The selected color temperature should remain consistent across a retrofit area where uniform appearance is required.
Optional dimming is available. The supplied specifications do not identify a dimming protocol or control compatibility.
Longevity and Reliability
The driver is rated for 50,000 hours. LED performance is rated at 100,000 L70 hours.
Long-term retrofit performance depends on the condition of the existing fixture housing, electrical components removed or retained during conversion, and heat management within the fixture.
Build Quality and Physical Characteristics
The retrofit kit measures 6.1 inches long, 5.2 inches wide, and 2.75 inches high. It weighs 4.5 pounds.
Fixture housing clearance and internal mounting arrangement must be verified before installation. The supplied data does not identify included mounting hardware.
Where This Product Fits Best
This retrofit kit fits existing metal halide fixture conversion work where the fixture housing is retained and LED output is installed within the existing assembly. It is suited to planned upgrades and maintenance-related conversion work.
- legacy fixture conversion
- fixture retrofit projects
- energy upgrade projects
- maintenance-driven lighting upgrades
- tenant improvement projects
- warehouse lighting retrofit
ETL listing and rebate eligibility are stated for this retrofit kit. Existing fixture condition, available internal space, voltage, and layout requirements remain important project variables.
Installation and Long-Term Use
Installation requires removal or bypass of the existing metal halide lighting components as required by the retrofit design. The retrofit kit operates from 100-277V and replaces a 400-watt metal halide fixture.
Confirm the existing fixture housing has adequate internal clearance for the 6.1-inch by 5.2-inch by 2.75-inch retrofit assembly. The 4.5-pound kit weight should also be considered when evaluating the existing fixture structure.
How This Fixture Is Commonly Used
In fixture retrofit projects and legacy fixture conversion work, the kit is installed within retained fixture housings rather than replacing the complete fixture. Mounting height remains a layout consideration because the existing fixture position determines how the 120-degree beam is distributed.
For warehouse lighting retrofit and energy upgrade projects, existing fixture spacing often establishes the initial layout. Higher output can reduce the need for additional fixture locations, but the existing spacing and mounting height determine final uniformity.
Safety, Certifications, and Warranty
This retrofit kit is ETL listed. It is rebate eligible.
Warranty information is not provided in the supplied specifications. Installation should verify the existing fixture housing, electrical condition, and internal clearance before conversion.
Frequently Asked Questions
Q: What metal halide fixture does this retrofit kit replace?
A: This 100-watt LED retrofit kit replaces a 400-watt metal halide fixture.
Q: What voltage does this retrofit kit use?
A: The retrofit kit operates on 100-277V, 50/60 Hz electrical systems.
Q: Is dimming available?
A: Optional dimming is available. The supplied specifications do not identify a dimming protocol or control compatibility.
Q: What should be considered when planning fixture layout?
A: Existing fixture locations, mounting height, the 120-degree beam angle, and target light levels affect layout planning. A specific spacing value is not established by the supplied product data.
Application Questions and Clarification
Q: Is this retrofit kit appropriate for warehouse lighting retrofit projects?
A: Warehouse lighting retrofit is a listed secondary application. Existing fixture condition, mounting height, layout requirements, and internal fixture clearance affect final fit.
Q: What should be checked before converting a legacy fixture?
A: Verify the existing fixture housing can accommodate the 6.1-inch by 5.2-inch by 2.75-inch retrofit assembly and its 4.5-pound weight. Confirm that the available electrical supply is within the 100-277V operating range.
Q: Can this kit be used for maintenance-driven lighting upgrades?
A: Maintenance-driven lighting upgrades are a listed primary application. The retrofit kit provides 15,500 lumens while replacing a 400-watt metal halide fixture.
Web ID: 1242