JESLED 28 Watt (280 Watt Equivalent), T8 LED Non-Dimmable Light Bulb, Cool White (6000K) G13/Bi-pin Base | Wayfair
SANSI Grow Light Bulbs 10-Watt (150-Watt EQ) LED Grow Light Bulb in the Grow Light Bulbs department at Lowes.com
Replacement for Philips Light Bulb PL-C15mm/28w/827 by Technical Precision - 28 Watt Energy Saver Plug in Bulb with GX32D-3 2-Pin Base - T4 CFL Light Bulb 2700k Soft White - 1 Pack
JESLED 28 Watt (280 Watt Equivalent), T8 LED Non-Dimmable Light Bulb, Daylight (5000K) G13/Bi-Pin Base | Wayfair