1PCS 5V K2 One Channel Relay Module Relay Switch DPDT Switch Electronic Trigger for RC Airplane Remote Control Robot Rocket Model

The switch remotely controls the electrical equipment on model aircraft through a switch channel on the remote controller, and the 1-way LED dynamically demonstrates the current switch state in real time, so it is easy to use without an operation manual.Description:-Only a 5V receiver is supported, otherwise, the module may be damaged. If receivers and servosuse a high voltage, the module should be added with a step-down module.- With one channel servo signal input, it can control two relay switches- M 40A current for parallel connection- One way LED indicates working status- With boot protection- Easy to operate- No need of calibration and can be accurately compatible with remote control devices of various brands.- With transparent heat-shrinkable rubber- Small and lightApplication range:- Remotely controlling model rocket launch- Remotely controlling model pulling smoke- Weapon system control of scale model airplanes- Model aircraft's smoke control- Switching signals of two cameras-