JTD16 10pcs HO OO TT Scale Target Faces Railway signal 1 Aspect LED

Features: Brand new. Perfect for Railway & Building Layout! 1-light signal Heads. With red LED's. They are unsoldered, you need to solder them yourself. These LEDs are suitable for use at supply voltages of 3V only. DO NOT use them on 12V or 16V directely to avoid damaging the LED. You must connect a resistor in series before you will use them on 12V or 16V, I will supply compatible resistors for free. Specification: Reference Scale: 1:76~1:100. Suitable for OO HO TT scale. Operating Voltage: 3V, AC or DC Compatible. Operating Current: 20mA.    Material: Plastic. Package included: 10 signal Heads & 10*3mm Red leds. 10 Resistors (not pre-soldered) for 9~18V operation.