Bactericidal tube UVC 18W T8, spare germicidal lamp, base G13, length 60.4 cm
Amazon.com: T8 LED tube, transparent screen-based G13, 18W, 1.2 m : Tools & Home Improvement
25/100 Pack 4FT G13 18W T8 LED 48inch Fluorescent Tube Light Bulb LED Shop Light | eBay
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
Sunlite T8/LED/4'/18W/DLC/30K LED 18W Frosted T8 Tubular Lamps, Medium Bi-Pin (G13) Base, 3000K Warm White - Walmart.com
LED tube T8 G13 230VAC 18W warm white 3000K 26x1200mm - Cablematic