This is one of the Best Grow Lights I’ve ever used Especially The Newer Upgraded Version the Samsung Lm301B Dual Chip 4000W Bestva it has 2200 PPFD from 18 inches away on my last grow it gave me 1.4 pounds from 3 Plants the Newer Upgraded Version Using 450 True Watts I highly recommend this light to any indoor Grower you won’t be disappointed it’s rated to last 100,000 Hours and can take a smack it’s highly durable and reliable