Lonyung Linkable 4ft T8 LED Replacement Tube Light UL-Listed & CE-Qualified 22W (40W equivalent) Light Fixture Bracket All-in-one, Daylight, 6000-6500K Non dimmable, can be linked under cabinet Fixture.Daylight white ,22W LED be equivalent to standard traditional fluorescent tube 40-watt ) Lifespan : 50,000 hours . Energy saving (90 Lumen Per Watt ) save 80 % electricity Energy efficient, no heat, no flickering or buzzing. UL-Listed & CE-Qualified Tube light fixture all in one structure .No need florescent bracket / ballast /starter/ light fixutre. Easy install ,come with all installation accessories These lights are also durable thanks to the hight quality PC cover & high-strength Aluminum housinghence making them less fragile . Please contact us with good solution,if the product is defective