LED tube light is designed to replace a 4-foot T8 tube light used in fluorescent lighting fixtures. Compatible with current electronic ballasts plug and play (Type A); while also able to be used via bypassing the ballast (Type B, or direct wire). Provides a minimum light output of 1920 lumens, with a color temperature of 4100K, and is rated to last over 70,000 hours. Non-dimmable and will work with 120-277 volts. Frosted, emitting a warm white light that mimics daylight.