AUXILIARY SWITCH--2 Additional 20A switches built inside the controller, means that you can powering some other devices at the same time, such as strobe lighthideaway light, you can control the switch by the A and B button of the wireless remote
NOTES: When the green light on the control box is on, the product is in standby mode and the remote control cannot be used. You can turn off the power and then turn it back on until the green light goes out, then it can be used normally.