... Daylight 4.Bulb : Clear, BT(TO) Average life :10000Hour Metal halide lamp:70W/150W 250W/400W/1000W 4200K, 5200K, 6500K, 10000- ... .High efficacy, universal burn position, enclosed fixtures. Used for outdoor advertisment, sports place, indastry factory light, sports gym ... , parking lot, and all kinds of sports place, construction field, building floodlight. ...