4 ft T8 LED Tube, 18W, 5000K, Type A+B Ballast Compatible, UL Listed

The 18W T8 LED tube is a direct replacement for standard 4 ft fluorescent lamps, suited for commercial and industrial applications including offices, warehouses, and retail spaces. It operates in Type A or Type B mode, allowing compatibility with existing fluorescent ballasts or direct line-voltage wiring. The tube delivers 130 lm/W luminous efficacy at a 5000K color temperature with a CRI of 80 or above, using an Epistar SMD2835 chip and a clear cover for uniform light distribution across a 120° beam angle. It operates on 120-240V input and is rated for an ambient temperature range of -20°C to 40°C, with an IP20 environmental rating and a 50,000 hour service life. The fixture is UL listed and carries a 1-year limited warranty.