Philips Mastercolor HPS Retro White 400 Watt ED18 Ceramic Metal Halide Clear Lamp

• E-39 Mogul Base • Rated Avg. Life 24,000hrs • Color Temp 4000K (Cool White)
  
• Ansi Code M169/O/S51 Rated For Enclosed/Outdoor Luminaires • CRI 85
  
• Vertical ±15º Burn Position • MOL 9.75in x DIA 2.25in • Sold 12/Case

Additional Information

• Philips MasterColor Ceramic Metal Halide HPS-RetroWhite Lamps are designed as a retrofit for HPS lamps.
• Operates on standard HPS ballasts.
  
• Rated average life of 20,000 hours* for both vertical (250W & 400W) and horizontal (250W) operation.
  
• Excellent color stability,CRI, and 80% lumen maintenance-stays brighter longer.
  
• No shut off required- ideal for 24-hour a day, 7-day a week operations (relamp fixtures at or before the end of rated life)
  
• Patented coil design offers protection for open fixture rating. Uses ALTO® LampTechnology.
  
• Available in 250 and 400 watt horizontal and vertical operating versions.
• This lamp is better for the environment because of its reduced mercury content
• All Philips ALTO lamps give you end-of-life options which can simplify and reduce your lamp disposal costs
  
• depending on your state and local regulations
  
• Lifetime color stability within ±200K
• Better rated average life of 24,000 hours** Compared to quartz metal halide pulse start
  
• Better lumen maintenance than quartz metal halide.
  
• Improved lumen maintenance increases time between re-lamping.
  
• Better energy efficiency. Compared to mercury vapor and quartz
  
• Operates on metal halide pulse start ballasts.
  
• Patented coil design offers protection for open fixture rating. watt.