Usage Tips: Supports high voltage 5-9V receiver. 300W power relay. Transparent heat shrinkable tube allows users to clearly see the LED working status, with a stylish appearance. Two LEDs indicate working status. Max DC30V 10A. Includes no signal protection. With boot protection, easy to operate. Input channels do not need to be calibrated, compatible with various brands of remote control devices. Small size and light weight. Application range: - Remote control model rocket launch - Remote control model smoke control - Weapon system control for realistic models - 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 camera recording and mode Color: As shown Material: PC + Metal Package Contents: 2 x RC relay switch Note: Only the items listed above are included. Other products are not included. Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.