10 x 2ft F18w (18w) T8 Fluorescent Tube 840 Cool White [4000k] (SLI 0001476) - Amazon.com
Keystone KT-LED7T8-24GC-840-D - Linear T8 LED Tube
Amazon.com: NYLL - 2 FT/ 24" Plug & Play LED Tube - Cool White (4100K) T8 LED Lamp Directly Relamp 17W 20W Fluorescent Bulb F17T8, F24”T8, F20T12 840 841 (Without rewiring or
Feit Electric 32-Watt 4 ft. T8 G13 Type A Plug and Play High Output Linear LED Tube Light Bulb, Cool White 4000K (2-Pack) T848HO/840/LED/2/RP - The Home Depot
GE 62485 LED21T8/G/4/840 Glass 4' Type C LED T8 Tube 18W 70,000 Hours