DIY LED questions

[Wayne]

Ok its time to replace my PC bulbs again in my 29G Biocube... They are never cheap so I think its time to upgrade to LED's. With the birth of my baby girl and needing to buy a house I can't afford to buy a $600 LED fixture and a $1000 aquarium controller to drive it

I have been on Rapid LED's website and they make a retrofit kit to setup me up with LEDs, fans, drivers, wiring, ect. but it requires a controller or a dimmable driver... I would prefer a controller with an auto top off function (since my Tunze just crapped out) and maybe a few other functions but I am not looking for every bell and whistle. What are my options?