Othmro 2Pcs T8/T12 Fluorescent Light Holder G13 Base Single Head Tombstone Lamp Socket AC 500V 2A for LED Fluorescent Tube : Amazon.ca: Tools & Home Improvement
Shunted vs. non-shunted sockets: How to tell what you need
JACKYLED Non-Shunted Turn-Type T8 Lamp Holder UL Socket Tombstone with 10 inches Wires Attached for LED Fluorescent Tube Replacements 18-Pcs | Walmart Canada
Non-shunted Turn Type T8 Lamp Holder UL Socket Tombstone – JACKYLED
JESLED Non Shunted LED Tombstones - (Pack of 50) T8 Lamp Holder, UL Turn Type Tombstone Lampholder for T10 T12 LED Fluorescent Tube Replacement, Medium Bi-pin G13 Socket for Programmed Start Ballasts :