Went LED...
Went LED...
...and zero regrets. I have had 2 tanks with MH and living in south Florida the heat was really a problem. I did get a chiller at one point that died a year later...
In addition the pure PAR capabilities of LED, I really like the control you have to dim, set blue and white balance, and simulate different light scenarios. I do this while using minimal electric and throwing very little heat into the tank.
Cons? Price and I had to hang the lights from the ceiling to get the right spread from the lenses. Looks good but a bit more work than planned. I have AI Sol Blues over a 24x24x20 cube, 2 units but may have been able to get away with 1. I really think LEDs are the forseeable future but agree price needs to come down. Quality of AI has to be seen to be believed. Well engineered.