Simply Conserve 17-Watt/32-Watt Equivalent 4 ft. Linear T8 Type B Double-End Bypass LED Tube Light Bulb, Cool White Light 4000K(25-Pack) L17T8G40BDE - The Home Depot
JESLED T8 T12 4FT LED Type B Light Bulbs, 24W 3000LM 5000K Daylight White, 4 ... | eBay
JESLED T8 T12 4FT LED Type B Light Bulbs, 24W 3000LM UK | Ubuy
10-1000 PACK LED G13 4FT 4 Foot T8 Tube Light Bulbs 18W 6500K CLEAR LED Energy | eBay
LUXRITE 32-Watt Equivalent 4 ft. Linear Tube T8 LED Light Bulb Ballast & Ballast Bypass Compatible 13W 3000K Soft White (4-Pack) LR34195-4PK - The Home Depot