(2 PACK) True-Color & UL Listed- T8 LED Tube Light - 4FT 48" 18W (32W Equivalent), Cool White 4000K, FO32/741/CW, F32T8, F34T12, Single-End Powered, Clear Cover - 100-277V + 2 FREE LAMP HOLDERS Start-up time ~2 seconds from 110-120V & Instant-on from 240-277V: Please don't buy unless your application doesn't require instant-on at 110/120V! (The time delay helps to protect your LED lights from being damaged by surging current). Clean Cool White 4000K with 95CRI for True Color Correction: TRUTH + HEALTH Easy to Install: Fixture Rewiring Required! However, with 2 FREE non-shunted lamp holders, you are not bothered to buy anything more to get the installation done! SIGNIFICANT ENERGY SAVING: 34W Equivalent, saving ~50% electricity! Lifetime &gt;24 Years; 5-year warranty