Electronic parts made by Sakatsu, non-scale This LED control board is designed to be installed in a single-sided driver's cab model railway. If the input polarity is reversed, no electricity will flow. (AC and DCC are not supported.) Two LEDs of the same type and colour can be switched on with the same control board. Note: The output current value is 5mA. The light output will be slightly dimmer than when 20mA is applied without the board. Board size: 12mm x 7mm Suitable input voltage: 3V to 20V Input Limit: DC only Output current value: 5mA Supplied cable: approx. 20cm LED: Only guaranteed to work with LEDs available from Sakatsu Gallery. Special note: The wiring requires soldering work. Please make sure to use a ceramic heating iron for soldering. Vehicle and LED are not included. Information edit: Sakatsu Gallery This is an LED control board for use when you want to light only the direction of travel in the headlight of a single cab model railway car. As the current is controlled, the voltage can vary from 3 to 20V, which is the operating voltage of the LED, with little or no effect on the brightness. Note: The output current value is 5mA. The output current is 5mA, which is slightly dimmer than the 20mA output without the board. If the polarity of the input side is reversed, no current is output to protect the LED. (Not AC compatible, not for use with DCC control on model railways) Single Operation Micro Control Board both operation LED light control board Light bulb color White (Fluorescent) Color Red