125 Watt SunBlaster CFL 25,000K Super Blue Compact Fluorescent Grow Light Bulb Use the 125 watt compact fluorescent bulbs to replace your existing 250-300 watt regular bulbs, where ever you want to provide full spectrum Super Blue 25,000 Kelvin cool natural light which is comparable to natural daylight and for budding or flowering stages, when used in horticultural applications. These bulbs work well in warehouse lighting as well as horticultural applications as well. 25,000K super blue lamps, use these lamps to enhance your propagation Using SunBlaster 25,000K lamps can help prevent your cuttings from stretching while waiting to find a home