Bactericidal tube UVC 18W T8, spare germicidal lamp, base G13, length 60.4 cm
Sunlite T8/LED/4'/18W/DLC/30K LED 18W Frosted T8 Tubular Lamps, Medium Bi-Pin (G13) Base, 3000K Warm White - Walmart.com
4 ft. 18W (32W Replacement) Selectable White G13 Base (T8 Replacement)
LUXRITE 18W U-Bent LED Tube Light Bulb T8 T12 3000K Soft White Replacement Direct or Ballast Bypass ETL Listed G13 Base (4-Pack) LR23510-4PK - The Home Depot
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