Accuracy is questionable
12 inches below a brand new Sansi grow light and it measured ~4000 lux. Should be much higher than that. I had to place it about an inch below the grow light to get it to measure as “bright indirect light.” For the price that this is, I don’t think it’s worth it. Also, you can only test it one time and then it makes you pay. I want to be able to have enough time to verify accuracy before pay $25 for a subscription. There are better phone light meters for less money.
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