Rigid Industries 40200 Radiance Multi-Trigger Harness (2 Switch Single Relay) The Rigid Industries&#39; Radiance&#8482; Multi-Trigger Harness was designed specifically for the Rigid Industries Radiance light bar. Equipped with two independent circuits for an easy install, circuit one is designed for higher amperage and utilizes a relay to power the primary LED&#39;s on the Radiance light bar; while circuit two is designed for low amperage and has no relay for the The Radiance Multi-Trigger Harness also comes standard with two separate backlit LED rocker switches (red and blue), so each circuit can be used independently. The Radiance Multi-Trigger Harness makes installation of your Rigid Industries Radiance as simple and clean as possible.Radiance multi-trigger harness.Integrated fuse holder to protect both circuits.Circuit 1 is designed for higher amperage and utilizes a