4-Pack of Fulight -UL Listed- Non-Shunted T8 Lamp Holder Socket Tombstone for LED Fluorescent tube lights, Medium Bi-Pin Socket, Turn-Type - For Programmed Start Ballasts - Standard Profile Provides an easy installation for both T8 and T12 light tubes. IDEAL and NECESSARY for installing a single-end powered LED tube light! It allows you to connect a live and neutral wire to one end of the tube. Maxium Voltage: 600V/ Maximum Wattage: 660W Dimensions: 1.25"(W) x 0.75"(T) x 1.65"(H) UL Listed for safety insurance!