Hyperikon 4 Foot LED Tube, T8 T10 T12 40 Watt Replacement (18W) Brand HyperikonSpecial Feature G13 Bi Pin Base, 40W Flourescent Equivalent, Energy Efficient ECO Green, No UV or IR radiation, No Flickering, Shatterproof, High Output HO Tube 117 Lm/W, 45,000+ hour lifetime, 5-Year WarrantyG13 Bi Pin Base, 40W Flourescent Equivalent, Energy Efficient ECO Green, No UV or IR radiation, No Flickering, Shatterproof, High Output HO Tube 117 Lm/W, 45,000+ hour lifetime, 5-Year Warranty See moreWattage 18 wattsLight Source Wattage 18 WattsColor Temperature 4000 Kelvin 30 Days Warranty