Well LEDs > T5 no question. I'm using T5 for my clones right now, but it wont last. T5 simply don't give out enough light. I suggest getting some LED panels or induction lightning if you don't want to waste electricity and deal with ballasts. I am.

The GlowPanel 45 LED Grow Light - led grow lights -Sunshine Systems
Procyon-100 100W LED Grow Light - HomeGrownLights.com
LED Lighting

Few LED shops.
neceros Reviewed by neceros on . 600 watt Dual Digital Ballast lighting question Hi all! I've been researching my grow setup for sometime and I have stumbled upon a small snag I haven't seen addressed in this forum. As of now my setup will include 2x 600 watt Metal Halide/Hight Pressure Sodium lights using 2x Lumatek 600 watt dual digital ballasts. These ballasts can go down to 400 watts. I'd like to use 2x 600 watt MH bulbs for vegetative growth initially but 1) I don't seem to see many 600 watt MH bulbs available for some reason and 2) have seen that some Rating: 5