GE 71489 39 Watt MR16 Narrow Flood Pulse Start Metal Halide Protected Arc Tube 3000K ANSI C130 M130 GX10 Base Universal Burn CMH39MR16 930 FL Outdoor_Residential it can provide the same Cct:4000K it can provide the same brightness as a 75 watts incandescent bulb can which means you'll be able to save 73% on your electricity energy use Bulbrite's Compact Fluorescent T4 twin tube is a perfect long life option for any household fixture efficiency and uniformity) and Metal Halide Technology (providing bright white quality light) to produce highly efficient light sources with good color rendering and consistent color performance through life Mercury containing products sold into the state of WA include an environmental handling charge of