Item Descriptions:-This RC switch can be connected to receiver AUX channel or other desire channel. Toggle the related switch on the transmitter, this RC switch will close or open.-Easily turn on or off lights, smoke system, bomb drops, plane canopies from your remote controller or transmitter.-Simple install,can be replaced directly without adjustment, great compatibility and high reliability, just plugs with the item you would like to control, no setup required.-The 2A High Current Remote Control Electronic Switch(3-5V Low Voltage) are suitable for RC cars, trucks, planes, helicopter, quadcopter and drones.-Package include 2pcs RC switch, which can completely meet your daily use needs and replacement.Package:2x High Current Remote Control Electronic Switch(3-5V Low Voltage 2A)Item Specifications:Voltage:3.0V-5VOutput current:2ALength:21cm