Package include a RC switch and JST male and female cables. 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 Super simple install, just plugs with the item you would like to control, no setup required. Just make sure in your radio the throw for the channel you would like to control is set to +/- 100% Suitable for RC cars, trucks, planes, helicopter, quadcopter and drones Input Voltage (DC):3.7-28V. load current (DC):8A (Continuous current) Package included:
RC Switch x 1
JST female cable x 1
JST male cable x 1

Features:
This RC switch is ideal for switching lights, smoke system, bomb drops, plane canopies, sound and any other auxiliary electrical items.
It 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.

Specifications:
RX lead length:100mm
Power in/out lead length:100mm (each)
Switching load current (DC):8A (Continuous current)
Input Voltage (DC):3.7-28V

Normal mode
The module can read a pulse width that can range from 400 to 2600us.
If the width of the pulse is more than 1600us, the mosfet switch will close, if less than 1400us, the mosfet switch will open.

Safe-protection function
This module has a safe-protection feature that reduces the likelihood of unexpected activation.
In below 2 conditions the Safe-protection mode will active:
1.The pulse is more than 1600us at first power up, the mosfet switch open. The LED will blink, you should move the input to the off position, then normal more will active ;
2.The signal is bad continuously for 500ms, the mosfet switch open. The LED will blink. When the signal is good, the device will deactivates safe-protection mode.

LED
Normal mode: the LED will on when input pulse >1600us; the LED will off when input pulse <1400us;
Safe-protection mode: the LED will fast blink