Please forgive me for my ignorance but I need some help! I bought an old Micranta ac to dc power supply and it works great, but the meter is'nt backlit. I would like to install a led behind the meter. The meter runs off of a 110v current , but most led's require no more than 3.5 v. Would it be possible to use a resistor to lower the voltage, and how many ohm and watt resistor should I use?
Thanks,
Red
Thanks,
Red