Maintain better control of the large, essential electrical elements on your race car with a Track Rocker Relay Center from Painless Performance®™. The kit includes 8 relay controlled circuits with 21 feet of TXL wiring. The entire system is protected with an in-line 200 amp MIDI fuse and each circuit is protected by a 30 amp LED smart fuse that lights up when blown. To avoid dangerous voltage spikes, the Track Rocker Relay Center exclusively uses Diode Suppressed Relay. The relays are ground activated, which means they function with the Trail Rocker switch panels below to ground the relay coil terminal. For more information about the Track Rocker Relay Center, check out the online instruction manual.