O-NEX HID Relay Harness 9007 (HB5 9004) 12V 35W/55W Bi-Xenon Hi/Lo H/L Wiring Controller 9007 9004 HB5 Bi-Xenon (Hi/Lo) Battery Wiring Harness Bi-Xenon HID Kit Relay Harness, works with both 35w and 55W HID Kit, heavy duty design. Dual Beam High and Low (Hi/Lo H/L) functionality for most after-market hid Kit. 1 Harness will connect to both left and right side For 35W/55W Hi Lo Bi-Xenon type HID Kit installation only.