California Lightworks SolarXtreme 500 Full Spectrum 400 Watt LED Grow Light with UVBThe SolarXtreme 500 is one of our easiest to use full spectrum LED grow lights. Providing coverage for 16 square feet, our SolarXtreme 500 full spectrum LED grow lights support all phases of the growing cycle, whether used for small scale home growing or in a grow tent. The grow light systems innovative design eliminates LED drivers. This is because of a revolutionary chip on board design and direct AC drive built into the unit. High efficiency LEDs