Hytai T8 4ft led tube light 18w (48W equivalent) 2160 Lumens with The latest material Nano Plastic 6500k Cool White UL-List dura-end 4P Save 50% on your electricity bill! Replace 48W fluorescent tubes by 18W LED. Reduce re-lamp frequency with a lifetime of 45,000+ rated hours High security,Compared with aluminum easy electric leakage, glass tube easily broken, this innovative product can be eliminated Low CTE(coefficient thermal expansion),Heat dissipation is very good, tube light will not be curved and deformation even long time use UL/cUL-listed, CE-compliant, High safety is no doubt assured Instant on without any delay, start so quick and quiet without any noise