Model Rail (UK) - - WORKBENCH -

Re­sis­tors are needed where the out­put of your power sup­ply or trans­former is greater than that rec­om­mended for an in­di­vid­ual light. For ex­am­ple, you may have to make a 12V power sup­ply safe to use with a 3V LED. use­fully, some lights come ready-fit­ted with a re­sis­tor, which will save the has­sle of soldering.

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