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    Are these weird AC COB LEDs from Aliexpress any good?

    Hey there, random rollitup dweller! I found these LEDs while browsing AliExpress for my diy grow lights. Reviews are pretty good, but I can't really believe that you can buy 50w cobs for a couple of bucks (especially knowing how much they like to exaggerate specs on the Aliexpress). So the...
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