hykolity 20 Pack 4FT LED T8 Hybrid Type A+B Light Tube, 18W, Plug & Play or Ballast Bypass, Single-Ended OR Double-Ended, 5000K, 2400lm, Frosted Cover, T8 T10 T12 for G13, 120-277V, UL
4ft T8 Tube - Clear Lens - 18W | Commercial Lighting | Parmida LED — Parmida LED Technologies
T8 LED Ballast Compatible 15W 4 FT Retrofit Tube - Bi-Pin Base - No Rewiring - 5000K Daylight.
LED Flourescent Tube replacments ballast bypass guide