i would use both lightsif im growing three autos,, in a 3x3 foot area,, is running my 400 watt more efficent that useing my 600 watt bulb? for the results? thanks
Yes, especially if you use that 3x3 efficiently as in plant and bud site spacing.ya i did that,,, I just switched to the 600, but I was kinda wondering if the yields would really be any better,, since the 400w is enough to cover the area already