The light switch in my bedroom is failing. 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 for sale, but the differences aren't very clear and I'm not sure which one would be the best replacement. I'm also unsure what type of wiring I have (aluminum vs copper) and if that matters.| Recent Questions - Home Improvement Stack Exchange