I bought two of these and both were the same, nowhere near meeting spec. Brightness is obviously better than a 60W incandescent bulb but this listing claims to replace a 500W incandescent bulb. I measured power consumed on a watt meter and it came out to 31W. I installed it in a photo soft box and next to my 5000 lumen (40W) shop light and it is noticeably dimmer than the lower spec shop light (which consumes 40W, so as expected). It's probably not a bad deal if you just want a 3000 lumen or 300W incandescent equivalent, but it performs nowhere close to the claimed specs.
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