Supports high voltage 5-9V receiver. 300W power relay. Heat shrinkable tubing allows users to clearly see the LED working status, with a stylish appearance. Two LEDs indicate working status. Maximum DC 30V 10A. Includes no signal protection. Features boot protection for easy operation. Input channels do not require calibration, compatible with various brands of remote control devices. Compact size and lightweight design. Application range: - Remote control model rocket launch - Remote control model smoke control - Weapon system control for realistic simulation - Model aircraft smoke control - Control of various remote switch systems - Switching signals between two cameras - Control the on/off function of various electrical power sources, such as navigation lights, searchlights, strobe lights, buzzers, etc. - Control camera shutter or switch between recording and camera modes Color: As shown Material: PC + Metal Package Contents: 2 x RC Relay Switch Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.