Product Overview
GE 18904 400W ED28 Metal Halide Lamp
Technical Specifications
Electrical Properties
- Wattage: 400W
- Base: E39 Mogul Screw
- ANSI Code: M59/E
- Dimmable: No
Optical Performance
- Color Temp: 4000K Neutral White
- CRI: 65
- Lumen Output: 36,000 lm (Initial) | 23,500 lm (Mean)
- Efficacy: 95 LPW
Physical Dimensions
- Bulb Shape: ED28 Elliptical
- Dimensions: 8.25" L × 3.5" W
- Weight: 2.2 lbs
- Burn Position: Universal
Recommended Ballasts
- 1110-247SC-TC
- GEM400ML5AA4-5
- GEMH400MVA-F
- GEM40048TAC4-5
- M400ML5AC4M
- 71A6051
- M400/SUPER5-KIT
- M040081C211K
⚠️ Critical Safety Information
- Always de-energize before servicing
- Requires UL-listed enclosed fixtures
- Maintain 36" clearance from combustibles
- UV radiation risk with damaged envelopes
- Contains 38mg mercury - recycle properly
- Immediately replace damaged units
Certifications
- ANSI M59/E Compliant
- UL 1029 Listed
- RoHS Compliant
Environmental
- Mercury Content: 38mg
- Recyclable: Yes (EPA-compliant)
- Lifespan: 20,000 hours
Packaging
- Case Quantity: 12 lamps
- UPC: 043168189040
- Case Weight: 28 lbs
