Yep, fully agreed with you Alvin. That's why after 1yr, I still pondering which is better haha! Heat is really a main issue. Also the light spread and reflector problem. Ya loh, don't know why retrofit are more expensive? But most retrofit are juz resting on the tank right and there isn't any light stand?
Alvin is it possible to show a photo of your full light set resting on the tank?