Bests & Worsts Reviews from Amazon

DON'T WASTE YOUR MONEY. The listed specs are lies, it's actually dimmer than the average table lamp. If you didn't know, power input is directly related to the brightness of a light. The claimed power rating of 75W seemed a bit unreasonably high for its price and size, but I was curious enough that I thought I'd give this lamp a try. However, it was immediately clear on opening the box that it wouldn't meet the claimed specifications as the lamp has a USB power adapter, limiting it to a theoretical maximum of 10W. It doesn't get anywhere near that though - on testing it with a multimeter, I found it draws a measly 4W at maximum brightness (see attached video). Unless the alternative is complete darkness, these lights aren't doing anything for your plants, and they're way too expensive. If you want grow lights on a tight budget, you'd be better off buying a couple of reading or desk lamps from the dollar store because they'll be at least as good as this, and likely use the exact same sunlight white LED chips (15 out of 126 chips being red isn't going to make a difference to the plant, especially at this power).