The Sylvania M400/U/ED28 is a 400-watt metal halide lamp engineered for demanding industrial, commercial, and outdoor lighting applications. Delivering 36,000 lumens of cool white light at 4000K, it provides broad, consistent illumination ideal for warehouses, manufacturing facilities, parking structures, sports lighting, and large retail spaces. With a rated life of 20,000 hours and a clear ED-28 bulb profile, this lamp offers reliable long-term performance in high-bay and area lighting fixtures equipped with a mogul (E39) base.

Specifications

Brand Sylvania
Model Number M400/U/ED28
Energy Used 400 Watts
Base Mogul (E39)
Bulb Shape ED-28
Bulb Colour Cool White
CRI 65
Colour Temperature 4000K
Brightness 36,000 Lumens
Bulb Finish Clear
Bulb Technology Metal Halide
Average Rated Life 20,000 Hours
Length 8.3 in
Diameter 3.5 in
Start Type Probe
Ballast Code M59
Contains Mercury (Hg) Yes
GE Cross-Reference 18904 – MVR400/U/ED28