Available in 18W with 6500K color temperature, this T8 4ft LED clear glass tube is equivalent to 50W fluorescent tube of T8, T10, and T12 types. By switching from any of these fluorescent tubes of 50W to our 18W LED tube, there is a significant amount of energy savings. By so saving energy, you bring to yourself a lower utility bill not just for today or tomorrow but throughout the year. This product is also tested rigorously for heat dissipation to improve the lifespan -- about 4-5 times longer than the fluorescent tubes. The product is coated with polycarbide to provide it with the necessary durability. This product can deliver lumens up to 2400 and is bright enough for standard height ceilings. As UL listed product.