This simple, compact product allows you to switch on-board electronics on/off using a spare channel on your radio transmitter. Ideal for hobbyists looking to remotely control lights, smoke systems, sounds systems, cameras, cargo doors, tow hooks, or any other on-board electronic device. Features: compact and light weight versatile design can be used to control virtually any on-board electronic device high quality electrical components and durable case design ensure worry-free operation for your critical components. Specifications: weight: 8g dimension: 25mm x 10mm x 5mm receiver input power: 4-8. 4v dc auxiliary input power: 0-40v dc output continuous current capacity: 7a output peak current capacity: 10a (gt-105000011)