https://normanlamps.com/fluorescent/f54w-t5-850-pro-5000k-pure-white.html
F54W/T5/850/PRO - 54 watt, T5 Fluorescent Tube, 5000K Pure White, 5000 Lumens, 40,000 Hour Life
F54W/T5/850/PRO 5000K Pure-White - 54W, G5 (miniature bi-pin) base, Fluorescent, 5,000 lumens, 40,000 life hours by Pro-Start | Shop at Norman Lamps
https://www.scottelectricusa.com/online-store/product/general-electric-46761-f54w-t5-841-eco-ecolux-straight-linear-fluorescent-t5-bulb-54w-117-volt-452-inch-452-inch/234836
General Electric 46761 F54W/T5/841/ECO Ecolux Straight Linear Fluorescent T5 Bulb 54W 117 Volt 45.2...
General Electric 46761 F54W/T5/841/ECO Ecolux Straight Linear Fluorescent T5 Bulb 54W 117 Volt 45.2 Inch 45.2" for sale at Scott Electric in Greensburg, PA,...