Instantly replaces all 4 ft. F32T8 (25W, 28W, 32W) lamps Operates on most electronic T8 ballasts (instant & programmed) Multiple outputs up to 2800 lumens No socket changes, uses shunted or non-shunted sockets No rewiring or modifications of any kind required Maintains UL certification Instantaneous full light output upon power-up High efficiency, state-of-the-art technology, 125+ lumens per watt Frosted glass lens reduces visual glare Environment-friendly, no mercury or lead Suitable for fu