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Last Updated on: Tuesday, June 01, 2021 03:06 PM

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More  Indicator Circuits

AC Current Indicator Light Circuit
designed by David Johnson, P.E.

This circuit could be wired into a 120vac power line, which feeds power to any load, ranging from 40 watts to 250 watts.  It will turn on a LED light whenever current is being drawn by a load.  It is especially useful for remote lights, where you may not be able to see if the lamps are receiving power.

Click on Circuit Below to view PDF of Schematic


Lamp Current Indicator Circuit designed

 by David Johnson, P.E. (Oct 22, 2005)

More  Indicator Circuits

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