52W E39 Mogul base LED Retrofit Lamp for replacing Low Bay HID lamps up to 175W. 120 - 277 Volt. Approved by UL for enclosed fixtures. Active cooling is provided by long life "Mag-Lev" cooling fan which keeps LED's cool even when operating within enclosed light fixtures. UL1993 certified for USA and Canada. Available in Daylight (5700K) or Cool White (4200K). 120-277VAC
