Fixes flashing headlights or headlights that will not change from low beam to high beam. Operates 6 Volt or 12 Volt positive ground or negative ground. This heavy duty led headlight load equalizer operates cooler so it last longer. Rated at 4 Amps. Body is anodized aluminum. Comes with two insulation displacement connectors "IDC". Please crimp on to your existing wiring in parallel with the low beam on both your headlights. No need to cut your wiring harnesses when using the insulation displacement crimps. To test once installed the load equalizer should get warm or hot to the touch when you headlights on are low beam. The load equalizers come with 14 AWG heat resistant wiring. Please mount to a metal surface to help the load equalizer stay cooler. No need to purchase expensive and complicated harnesses when using these load equalizers. The wire length is about 4.5". The operating temperature is approximately 100 degrees Celsius. The load equalizer body length is 2.16". The load equalizer body width is 1.57". The load equalizer body screw center to center slot is 1.30". The load equalizer body screw mounting slot length is 0.78". The load equalizer body height is 0.72". The load equalizer body screw mounting slot width is 0.13".