SunBlaster 3' T5-LED Conversion Bulb 6400KSunBlaster T5LED Conversion Lamps provide the same great growing performance as our original T5HO fluorescent lamps with the added benefits of reduced power consumption and an extended operating lifetime of approximately 35,000 hours. Thats 3. 5 times longer than our traditional fluorescent lamps, contain zero mercury, better for our environment. Instantly converts T5HO fluorescent driven lighting fixtures to High Quality LED output in just seconds.