Is there a cheap way to do it? I would like to build a VU meter using 220V light bulbs instead of LED's, but I see that the only way would be to use relays, which don't seem to be cheap (maybe I'm looking at the wrong places?). So what would you suggest me? Is this even possible without relays?

Switching 220V light bulbs

retrolefty April 8, 2014, 2:34pm 4

Cheap way:

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