ProLume® Standard Metal Halide lamps are unaffected by ambient temperature and are suitable for indoor and outdoor use. These lamps provide better light quality and are more efficient than High Pressure Sodium or Mercury Vapor.
• 400 Watt ED28
• Mogul (E39) Base
• 4000K Color Temperature
• Clear and coated options
• Up-to 20,000 hours average rated life
• Improved lumen maintenance
• High efficacy, up to 110 lumens per watt
• Improved color rendering compared to HPS
• Operates on standard, ANSI M59/E ballast
• Universal operating position