Use this relay harness to connect HIDs to cars with very small gauge wiring that cannot supply the initial surge current required to light the bulbs reliably. Symptoms indicating the harness is required would be intermittant starting or lights going out after being turned on for several minutes and requiring you to turn the lights off and back on for them to turn back on again.

Recommended for all 50W HID installations but most American and European cars work at 35W/50W without the harness. The harness is definitly recommended for Quad's and other ATVs or when running multiple HID installtions. This harness is a fused realy isolation harness capable of supplying 40A at 12vdc.