400 Watt - ED37 - Metal Halide *Brand Name: Sylvania *Sub Brand: Metalarc *Watts: 400 W *Bulb Shape Type: ED37 *ProductType: HID Bulb *Lumens: 36000 lm *Light Color: White *Bulb Type: Metal Halide *Number in Package: 1 pk *Length: 11.5 in. *Diameter: 4.6 in. *Indoor or Outdoor *Dimmable: No *Bulb Base Type: E39 (Mogul) *California Title 20 Compliant: No *Finish: Clear *Packaging Type: Boxed *Commercial or Residential: Commercial and Residential *Average Rated Life: 20000 hr*Color Rendering Index: 65 CRI *Color Temperature: 4000 K