I tested it, and unfortunately, the light didn't turn on. I left the batteries in, so it seems to be broken due to battery leakage. Therefore, I'll list it as junk, but it can still be used as a magnifying glass, so there might be a demand for it from people with presbyopia like me. Well, the question is, why don't I use it myself? I still have the box, and if I can sell it for a good price, I don't really need it. Thank you for looking.