Finally I got everything together. Heatsink temperature is at 100% light under 50c. I might put fan into hood but I have to check how to control it from arduino first.
Control unit. Aluminium enclosure from ebay (few usd).
Everything packed into plastic box from Ikea. Its little bit messy, but it should work just fine. I can update software easily.
Another shot from ikea box.
And the light unit for Fluval Edge.. The Splash guard is still in the works. This will replace the fluval edge own lights. Metal clips keep the light in place under the fluval edge hood.
Now it is time to start building actual reef…:) (few more weeks before I can purchase live rock).