Aleddra LLT-4-EM-T8-G3-15W-40K LED t8 tube with emergency battery backup built in 4 foot 15 watt 1890 lumens 4000k cool white 100-277v replaces YSH-T812-Y01-18(G13)4000K - emergency led lighting and more at Green Electrical
EZ LED T8 FROSTED glass retrofit kit fits 2 tube 4-foot light, Type-B, Double End 5000K Cool White Color
T8 LED Bulbs 5000K Daylight, Ballast Bypass Tubes; 15 Watt - 1800 lumens - One Sided Direct Wire - 4 Ft| 34881
Philips 4 ft. 32W Equivalent Cool White Linear T8 LED Tube Light Bulb 472878 - The Home Depot
DLC Listed 48" 4000K T8 or T12 LED fluorescent replacement tube lights - 1900 lumen UL Listed LED tube lights for T8 or T12 retrofit applications at Green Electrical Supply