Agree, but it is new tank and not ready to buy the LED hood yet, so was thinking to buy a used chiller and in future will replace my hood into LED version. Thx.

But you can buy a DIY LED kit for less than $150 shipped. Any good with a soldering iron?
http://www.aquastyleonline.com/

Thank you Snaz. I tried couple of times, but hundreds of years ago :) What LED kit will give me the same performance as MH 150W for SPS? I think I can try to use the same hood as I've installed 2 strips of blue LED additional to my MH lamp, so it might be doable. Thx for your help!

From what I have seen is usually 1 or 1.25 emitters per gallon of water with colours balanced between cool white and blue and maybe some reds or violets thrown in for extra brilliance. I went 50/50 cw and blues each is on a dimmer so I can dial in a nice look.

You should certainly look at nano-reef.com forums as there is LOTS of excellent info on using LEDs in AIO, reef nano etc, there is even a long thread dedicated to this vendor and how everyone is enjoying the product. Good luck.