You'd be better off building your own using Bridgelux/Samsung strips. Hang in an ali frame with a driver and job done. You'll get exactly the type of light you need - spectrum/Kelvin - so you will have a great light that works. If you don't know wiring people here will do a diagram for you

With this COB you'll get nothing much at all probably, if you don't use the best chips. You might end up with crap weed after spending weeks waiting for the harvest then having to start again. COBS are very good lights IF you get the good chips. And can verify that you're getting what you are being told you are getting. I wouldn't risk it with this unit tbh.....good luck with your choice though!