Hey I'm 16 and have been in the hobby since I was 10. I have followed radion since, and have noticed significant improvements with the spread and the spectrum of the leds. Radion definitely sets the standard of professional reef leds, and has its competitors far behind them. I thought that there was a huge improvement from the gen 2s to gen 3. Integrating a better cooling system, as well as incorporating new leds. These lights have to be my favorite because they can be used for any tank whether it's for hard sps coral, all the way to easy lps. I am currently in the process of setting up my 2nd tank and would love to show case ecotechs outstanding radion G4 xr30w pro performance on bubble tip anemones. In my opinion they are a little tricky to keep only because they can change color for the better or worse. I plan on keeping a wide range of anemones from bubble tips, to rock flowers. Overall I feel that the radion G4 has had a significant increase in quality as well as performance, offering a better lens system and color spectrum to grow coral or inverts. Ecotech has really changed the game with their sophisticated yet original led lighting system giving ati, ai, and halifes competition. Showing the people of the reefing community that you CAN have amazing sps, or lps tanks with leds changes everything.