mauricem00
Well-Known Member
found these on amazon https://www.amazon.com/dp/B0716JJC4G/_encoding=UTF8?coliid=I1F5J3NT3X8LSN&colid=AW7UKM9ED6GM&th=1 they seem to have a broader spectrum than most cheap led grow lights and if the claimed output of 72 lpw is correct then they are using higher bin diodes than other cheap led grow lights. has anyone used these? with the spectrum used it would appear that these are 30-35% efficient which would require high bin bridgelux or epiled diodes