
I recently bought these BBF IT650 glasses, they make my grow room as bright as the sun. These glasses are very comfortable to wear for more than 8 hours a day, they don't let any light through the sides or top of the glasses. After wearing them for a full day, my eyes don't get tired and I don't get a headache from the 720,000 lumens falling on me and my plants. My plants were deficient in some nutrients and started turning slightly yellow, I could notice the color difference and acted immediately. I will buy a second pair of regular sunglasses, they are fantastic!