Of course not...hell you can flower with cheap cfl bulbs....your yield will be small but you can do it. Better quality lights produce better quality flower
I will agree..however, lets keep in mind not everyone's cash flow is the same, not everyone can afford expensive lights, lets not get down on them, but rather lift them folks up and support them, and help where we can...I was going to buy a dwarf star or a timber,
But after looking at bowhunter666 Led grow, FUCK it..I'm going with a 450 watt viperspectra LED...with all due respect to bowhunter666...if he can grow with that light, so can I, and I damn well plan on it!
We are all on the same team!..so some of us grow with cheap lights, some grow with expensive lights..what diffrence does it make?