20pcs U- BEND G13 20W 6500K MILKY U-Shaped LED Tube Light FB40 FB32 T8 T12 Replacement Frosted White Replacement LED tube for U-Bend florescent tube lights. For 2ft x 2ft office ceiling fixture. Mercury free energy saving. UV Free, does not attract mosquitoes and insects. High Lumen Frosted White 6500K Milky Lens. High power factor. Ballast needs to be removed. Office Lighting, School Lighting, Healthcare Lighting. Aluminum backing for excellent thermal managment.