SYLVANIA 64587 50 Watt E17 Pulse Start Metal Halide Protected Arc Tube 3000K ANSI M110 O Medium Base Universal Burn MP50 U MED GROUP_CO provides a light output of Natural twig 15% provides a light output of 3300 lumens at a Color Rendering Index (CRI) of 0 and can last an average of 20000 hours R40 HEAT LAMP BULB These 250 watt red heat lamp bulbs are fully dimmable and provide warmth for a variety of residential and business applications Mercury containing products sold into the state of WA include an environmental handling charge of The METALARC PRO TECH metal halide lamps were created to fill the need for a safe light source for applications where a protective lens on the metal halide fixture was either impractical or detrimental to fixture design