cheap led grow light

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

It is a 100 watt cheap light. If you pull 3 ounces off that light I would be surprised.

It does say epileds in the data lower down. (not that's something to shout about)

They usually say you get what u pay for. lol.

It's cheap enuff to try tho, and if nothing else you can use it as a back up. I always fear that one day my light will break down because i have no back-up. I would be screwed if it ever did.

You would have better results with 4 of these https://www.lowes.com/pd/Utilitech-Pro-120-W-Equivalent-Dimmable-Soft-White-Par38-Led-Flood-Light-Bulb/1000221077