Review on 🚤 Marine Boat Car RV Truck Rocker Switch Panel - FXC 5 Gang with Dual USB Slot Socket, Cigarette Lighter, Voltmeter - Waterproof Blue LED, 5V 4.2A (5B Blue) by Kyle Tran

All switches are wired in series with jumpers to pass unconnected components through such as a string of Christmas lights. That means everything uses the same wires to deliver power. This would be fine except the wires are 18 AWG wire. This isn't enough to handle the load when all the switches are connected to components that draw 12-15 amps each. You can burn your wires without setting the fuse the way it's connected. I wouldn't use this thing without putting a 30 amp switch between it and the battery or just using low amp components.