Non-shunted Turn Type T8 Lamp Holder JACKYLED 20-Pack UL Socket Tombstone for LED Fluorescent Tube Replacements Medium Bi-pin Socket for Programmed Start Ballasts - Amazon.com
Philips Advance Centium 40W (F40T12) 1 or 2 Lamp 4 ft T12 120-Volt Rapid Start High Frequency Electronic Fluorescent Replacement Ballast 520460 - The Home Depot