Unknown to me, tried to see what diodes they were using. No mention of what diodes or driver. Would give me an idea of quality. I think kingbrite and meijiu among others are allright.

I'll tell you right now they try to fuck ya on this light by overstating its coverage by atleast 2x the amount it will cover in flower. Notice they list 720 LEDS in the description... thats to trick new growers into thinking it's 720w like some LED fixtures are.

This is 200w and running it at 80% which you should run LEDs at not 100% it will cover a 2x2 to 2x3 area for flower. So 6sqft

NOT THE CLAIMED 4X4 which is 16sq ft.

Now all my ranting about the bullshit these companies try to pass off as great lights for an absurdly low price aside.

For a 200w full spectrum the price is pretty good for the product your getting... understand that doesn't mean it's a quality item. I means it's good for the price.