This is the brains of the system. The relay center houses six 40-amp relays. When you flip the switch on the dash it activates the relay and sends power to the accessory, in our case lights, compressor, and lockers. The control panel is wired direct to the positive and negative sides of the battery. Because it is wired direct, the accessories are available even if the engine or key is in the off position. However, if at any time the battery drops below 10.6 volts the Spod will shut off all attached accessories to protect the ability to start the vehicle.