120 Watt Metal Halide LED Retrofit | 18600 Lumens | 400 Watt Replacement | 4000K or 5000K | 100V-277V or 277V-480V

Product Overview

This 120 watt LED retrofit kit replaces 400 watt metal halide lamps in existing fixtures. The kit produces 18,600 lumens at 155 lumens per watt, delivering comparable light output to the original metal halide system while drawing significantly less power.

Two voltage ranges are available: 100V-277V and 277V-480V. Color temperature options include 4000K and 5000K. The retrofit kit measures 6.1 inches long by 5.2 inches wide by 2.75 inches high and weighs 4.5 pounds.

Dimming capability is available as an optional configuration. The kit operates on 50/60 Hz frequency with a power factor greater than 0.90 and total harmonic distortion below 15 percent.

Where This Product Fits Best

This retrofit kit is designed for facilities currently operating 400 watt metal halide fixtures where the housing and mounting remain in acceptable condition. It allows conversion to LED without full fixture replacement, which is often the practical path in warehouses, manufacturing floors, and distribution facilities with existing high bay infrastructure.

The dual voltage range options accommodate both standard commercial electrical systems and higher-voltage industrial configurations. Facilities with 480V three-phase service can specify the 277V-480V version without requiring voltage conversion equipment.

The 120-degree beam angle produces broad light distribution, making this kit appropriate for general area lighting in spaces where wide coverage from individual mounting points is needed.

Performance and Functional Considerations

At 18,600 lumens, this retrofit delivers output consistent with typical 400 watt metal halide performance while operating at 120 watts. The 155 lumens per watt efficacy reflects current LED performance standards for retrofit kits in this output class.

Color rendering index is rated at 75 or higher. This is adequate for most industrial and warehouse applications but may not meet requirements for spaces where color accuracy is critical, such as inspection areas or retail environments.

The rated lifespan is 100,000 hours to L70, meaning the kit will maintain at least 70 percent of initial light output at that point. Driver life is rated at 50,000 hours. In continuous-operation facilities, the driver may require replacement before the LED array reaches end of life.

Installation and Long-Term Use

This retrofit kit installs into existing metal halide fixture housings. The compact dimensions allow fitment in most standard high bay enclosures originally designed for 400 watt HID lamps. Physical compatibility with the existing housing should be verified before installation.

Electrical connection must match the installed kit to the site voltage. The 100V-277V and 277V-480V versions are not interchangeable. Confirm building voltage before specifying.

At 4.5 pounds, the kit adds minimal load to existing mounting hardware. Most fixture housings originally rated for metal halide ballast weight will support this retrofit without modification.

How This Fixture Is Commonly Used

Facilities typically deploy this retrofit kit when converting high bay areas from metal halide to LED without replacing the entire fixture housing. The kit installs into the existing enclosure and wires to the original circuit, making it a straightforward swap for maintenance teams already familiar with the building''s lighting infrastructure.

The optional dimming configuration allows integration with building lighting controls where adjustable output is needed. Without dimming, the kit operates at full output whenever energized.

The 4000K and 5000K color temperature options let you match adjacent fixtures or select based on space use. 5000K produces a cooler, more daylight-like appearance, while 4000K is slightly warmer and often preferred in spaces where personnel work extended shifts.

Safety, Certifications, and Warranty

This retrofit kit is ETL listed and rebate eligible. Verify eligibility requirements with your local utility program before applying for incentives.

We provide a 5-year warranty on this product.

Frequently Asked Questions

What voltage options are available?
Two versions are available: 100V-277V and 277V-480V. Select the version that matches your facility''s electrical system.

What color temperatures are offered?
This retrofit kit is available in 4000K and 5000K.

Does this qualify for utility rebates?
This product is rebate eligible. Confirm specific program requirements with your utility provider.

Is dimming available?
Dimming is offered as an optional configuration.

What is the warranty period?
This retrofit kit carries a 5-year warranty.

What does this retrofit kit replace?
This kit is designed to replace 400 watt metal halide lamps in existing fixtures.

Application Questions and Clarification

This product description reflects the provided specifications, ratings, and configuration options. For questions related to site-specific conditions, electrical compatibility, control integration, or application requirements not addressed in the provided data, our team is available to provide clarification.