Plugable Terminal Adaptor - For Cable Probes - Arduino Module - UK Free P&P

2 x Traffic Light 8mm LED Display Module for Arduino Red Yellow Green 5V

LM2596 Buck Step-down Adjustable output 1.3-37V with onboard LED Voltmeter - UK

Traffic Light 3 Colour LED Panel Mount

15 x 3mm led s ( 5x red - 5x green- 5x yellow) model signals/ traffic lights

LED Red Yellow green 5mm mixed Traffic Lights colours 10 pack

VISHAY OPTOCOUPLER TRANSISTOR O/P CNY17-3 Transistor Output x 1 device