LED T8 48 Inch Grow Lamp 120-277V 17 watt LED Grow Light with a full spectrum, emphasizing the Blue and Red wavelengths. This lamp can be used as a primary or supplemental lightsource for almost any type of indoor growing FACTORY DIRECT PRICING, THESE FIXTURES WILL SHIP DIRECTLY FROM THE FACTORY TO YOUR DOOR! This light is designed as a retrofit for a 4 foot fluorescent tube, and fits into many fixtures. In some cases simple modifications are necessary, which include removing the ballast and in some cases replacing a socket (tombstone). It can be installed in an open or closed fixture, and accepts an input voltage of 120-277VAC.