Here's my tank. I run a t5 mh fixture over 72" of it and on the far left I've been experimenting with led. Also, I've been running led on my frag tank that's plumbed in to the same system. I have noticed better color with about the same growth on the led side. This, along with increasing cost and availability of bulbs decreasing in the future, has made me come to the decision to go led. That being said I will also supplement with 4 retrofit t5 bulbs to help with the undergrowth of colonies.
What are the physical dimensions of the 32" wifi light? I have 94"x22" of space inside my canopy, so I'm just checking to see what will fit.