I know you don't want to buy lights twice and you probably won't. Honestly, it will be 3,4,5, or even 6 times...lol. Right now, I have T-5s and some MH(metal halide) in the garage. I have a few LED stunner strips in the garage also. Never set up anything other than the T-5. However, after going to the lighting workshop last week, I like the LEDs. They don't have quite the power of MH but electricity wise they are much less. They produce no heat, you can cook bacon on MH. The initial cost of LEDs are more but better for the long run IMO. Both of these stups to provide the "shimmer" effect though. My T-5s do not.