Not a chance, it'll barely cover 14"x14" in flower. To cover 3'x4' you'd need a SS800w (or other 600+w flowering high powered LED/HID light) if you wanted top shelf results.
Good luck!
SME
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.