Keystone Technologies | sku: 3577890 4-Lamp T8 Wiring Harness 4-Lamp Wiring Harness for LED Tubes. Includes (4) Pre-Wired Short, Non-Shunted Sockets with Power Quick Disconnect. For use with direct-wire T8 LED tubes that are single end power-sourced and don't use a ballast. - (4) KT-socket-T8-U-S comes pre- wired... Log in for pricing