Are you embarrassed to open your hood because of the comments you might get on that unsightly wiring mess? Clean up your firewall and tidy your engine bay with MSD’s Solid State Relay Block. This compact module takes the place of four standard relays, eliminating excessive and redundant wiring and simplifying your next wiring project. MSD’s Solid State Relay Block incorporates four independent channels that can be activated and deactivated using either 12-volt power or a ground trigger. Each of the four channels is capable of handling up to 20 amps of continuous current draw, providing up to 80 amps of total power control. It’s perfect for controlling accessories such as electric fans, nitrous solenoids, electric water pumps, car audio, auxiliary lighting – any electrical accessory that would normally require a relay. Each channel has two built-in LED indicators to help diagnose wiring problems and assist in locating short circuits and excessive current draws, and all four channels are thermally protected against overloads and electrical shorts. To reset the circuit, simply cycle the activation signal wire off and then back on again. This Solid State Relay Block comes complete all the necessary hardware and even thread locker to make sure it stays in place. The block can be installed virtually anywhere thanks to convenient mounting tabs which can be rotated 90 degrees to easily accommodate various mounting positions. Features: 4 Channels, 20 Amps each Clean, easy install with minimum wiring Over temp, short circuit and overload protection Diagnostic LED’s Multiple mounting options Activate with power or ground Channels can be run in parallel for devices requiring more than 20A single-channel rating The MSD Solid State Relay Block is priced at $149.95.