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220v Ac Light switch

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New Member
I would like to build a 220v Ac light activated switch for my porch light that I always forget to switch off.

It must be a day/night switch so that I can cut back on my electricty bill.

:x Please can anyone assist me?



Active Member
At the risk of sounding boring and trying to ruin your fun I'd advise against homebrewing something that will be installed for day to day use. Commercially available equipment in most countries, must pass rigorous safety standards - and in many countries equipment that is installed, like a light switch must conform to those standards.

With that said there are plenty of circuits available from Radio Shack or similar handbooks - plenty here on the web. Useful for playing and learning but not a substitute for the real thing.
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