2pk Mini DC Converter Step Down Power Supply Module DJI Phantom Video GoPro Hero

This is a DC power step down converter module that is ultra light weight, just the size of a finger nail. It can be installed on your FPV system adding nearly no weight because it is so tiny and lightweight. Regardless of your main power battery's cell count, it can convert it to the voltage that you need with 2A continuous currenct, more than enough for video transmitters and your FPV camera such as Gopro while keeping your plane as light as possible. How to adjust the voltage: Please refer to the pictures, there's a small knob that you can turn with a screwdriver to get different voltage. Specifications:   100% brand new and high quality. Module Properties: Non-isolated step-down module (BUCK) Rectification: Synchronous rectification Input voltage: DC 4.75V-20V(23V Max, not recommended!) Output voltage: DC 1.0V-17V (Adjustable, Output < Input) Output current: Rated current 1.8A (3A MAX, can not be prolonged) Switching Frequency: 340KHz. Output ripple:30mV(no-load) L