T8 LED Tube - 10 to 22W, 4ft, Frosted Lens - up to 2860 Lumen. QTY 30 in a case. Wattage and color are selectable, 10 / 12 / 15 / 18 / 22 watt selectable, 3500K / 4000K / 5000K / 5700K / 6500K selectable. Compatible with most instant- and programmed-start electronic T8 ballasts, and can also be wired direct! (ballast by-pass)