I have no experience with any of the chinese brand LEDs but have been doing some extensive research lately because I am changing my MH over to LEDs in the next couple weeks. I am 99% sure I am going with the DsunY lights after some research. Since I cant afford to spring for 5 radions right now this is the route I am chosing. I just wish they would intergrate into my apex. Maybe there is someone that has done it. Thats my next part of the research.
Guess that doesnt really anser any of your questions though.......