Philips Low Profile Tombstone Medium Bi-Pin T8/T12 Fluorescent Lampholder (2-Pack) | Do it Best
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
LAMPHOLDER SET FOR T5, T8, T12 BI-PIN LINEAR FLUORESCENT AND LED TUBES, PAULUHN CROUSE-HINDS, FX4008SET
03249 - 2-Pin Fluorescent Base Socket | LightBulbs.com
LH0547 Disconnect, medium bipin lamp holder/socket with slide on mounting
T5 LED Fluorescent Tube Lamp Holder Tombstone, Fluorescent Lampholder, T5 Bi -Pin Lamp Holder Lamp Socket Tube Accessory Lamp Aging Test, Pack of 20 - Amazon.com
T8 Bi-Pin Lamp Holder (Twist Lock) – Omni-Ray Lighting, Inc.