Mercury Vapor Lamp, Lamp Shape BT28, Base Type Mogul Screw (E39), Lamp Designation M250/BU, 250 WattsANSI Code M58, Color Temp. 4200K, CRI 65, Initial Lumens 22, 000, Mean Lumens 15, 000, Max. Overall Length (In.) 8-5/16 In., Lamp Finish Clear, Fixture Type Enclosed, Mounting Position Vertical +/-15 Degrees , Max. Overall Length 8-5/16 In.Average Life 10, 000 hr., Meets 2012 Lighting Legislation Energy
Metal Halide Lamps
- Lamps with UV Control have a quartz material that effectively cuts UVB and UVC radiation. The ConstantColor family of lamps show very little color shift over their life. Generally applies to PRECISE MR-16 and CMH (Ceramic Metal Halide) lamps. PulseArc lamps provide improved lumen maintenance for longer useful life and extended relamp cycles. Operate on ballasts that have igniters to help with lamp starting.