Product parameters: (Switch positive pole! 1.5ms low signal is off, higher than 1.5ms is on) Working lights: Slow flashing LED indicates no output, long flashing LED indicates output Working voltage: 3.0V 30V (high voltage version) Output current: 20A (high voltage version) Weight: 5g (high voltage version) per piece The switch is controlled by a 2-stage switch on the remote control Material: Composite material Category: Assembly Tools & Supplies RC Parts & Accessories: Servo Accessories Use: Vehicles & Remote Control Toys Technical Specification: Value 2 Remote Control Peripherals/Devices: Receivers Vehicle Type Compatibility: Cars Drive System: Four-wheel drive, requires assembly Wheelbase: Screws included Color: As shown in image Package Contents: 4 x Remote Control Electronic Switch Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm. Only the items listed above are included; other accessories are not included.