Wiring – Advice on light switch replacement in old house

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The light switch in my bedroom just started having issues. Sometimes when you flip the switch off the light remains on or the light flickers as if it's still getting partial power.

The house is from 1947 so the wiring is old and all of the original electrical outlets are two prong. I'm assuming no ground is available near this switch, but I haven't taken it out to look.

I see various switches on Amazon but the differences aren't very clear and I'm not sure which one would be the best replacement. Also, not sure what type of wiring I have (aluminum vs copper) and if that matters.

Thanks for any advice!

old switch

Best Answer

That's a standard plain light switch. Any home store, electrical supply house, or even Wal-Mart can set you up with the right thing.

I realize that some people don't want to waste their Prime membership and so they buy everything on Amazon, but you should not buy electrical supplies on Amazon for 2 reasons:

  • Most Amazon listings are actually Amazon Marketplace, an eBay-like flea market of not-necessarily-cheap Chinese junk. It's very difficult to tell the difference. Even if you watch out for "Ships from and sold by Amazon.com", you can get counterfeits. Using cheap Chinese on mains electrical is not a good plan.

  • Electrical gear is low value, quite heavy, and stocked everywhere. A $50 roll of wire weighs 27 pounds. That switch you need is 60 cents. As such, the business doesn't lend itself to mail-order; so there are few people selling. This has a very adverse effect on price. Online generally, you have what I call the "I don't wanna ship it price", and on Prime you have the "third party sellers pay for Prime shipping" price.

If you really like the Amazon model, use Home Depot. Use their "Pickup in store" option. They'll cheerfully pick the order for you and text you when it's ready. At the store they have something like Amazon Locker where you can pick up your order contactless.