https://blog.model-train-help.com/2017/11/how-to-use-led-lights.html?utm_source=rss&utm_medium=rss&utm_campaign=how-to-use-led-lights Model railroads and model trains Thu, 07 Dec 2017 01:13:22 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://blog.model-train-help.com/2017/11/how-to-use-led-lights.html#comment-20183 Thu, 07 Dec 2017 01:13:22 +0000 http://blog.model-train-help.com/?p=4599#comment-20183 Hi David
You can change the head light for an LED the instructions that came with your decoder should cover this or you may need to to go to their webb site to get the information and the size of the resistor that would be required If the voltage to the head lamp is a constant 12 volts then you will need a 470 ohm resistor However the decoder may have a lower voltage line for the lights and may well be for LED’s

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