GE 26683 - 250 Watt - T15 - Multi-Vapor Arcstream - Metal Halide - Tubular Envelope - Unprotected Arc Tube - 6000K - ANSI M80 - Horizontal Burn - ARC250T/H960/E39 HID Bulbs produce high output for their size making them a compact powerful &amp; efficient light source HID Bulbs are used for general lighting, professional lighting fixtures, growing applications HID bulbs put out around 3-5 times greater output (lumens per watt) than traditional halogen bulbs GE T15 bulb, 250W, Base: E39 Mogul Screw, Rated Life (hours): 10000, Color Temp: 6000K, Luminous Flux (LM):