u/Left-District3131

I want to make a simple battery powered emergency light for my kitchen using an old mason jar. I plan to put a small LED strip inside and run it off a rechargeable battery pack. I have seen similar projects on Alibaba, Amazon and eBay using cheap LED strips and USB power banks going for around 200 usd. My idea is to keep it plugged into the wall normally so the battery stays charged then when the power goes out, the light turns on automatically. Has anyone here built something like this? What did you use for the automatic switching , also how do you make sure the battery does not overcharge? I am not an electrician but I can solder basic things.

I am planning to source stainless steel coils for a small manufacturing project. I have been searching on Alibaba, Amazon, and eBay for suppliers where there are so many options and some prices look great but I am nervous about quality. Has anyone here actually bought stainless steel coils from these places? Did the coils meet your specifications for thickness and finish? I am looking for 304 grade, 0.8mm thick. I would love to hear positive stories about reliable suppliers you have used. Any tips on what to look for or what questions to ask before ordering would be great. I just want to learn from others before I make my move.