Radion is quite a good fixture in term of LED in my opinion after experienced with some ATI (horrible application, disco light with no reason, changing minimal 5% at least lead to coral shock), Orphek (cheap quality build, burn out chipset/ diodes... ), Illumagic (too weak, bad application but good colour representation - not really good health for coral but corals look nicer under this fixture), AI (worn out). The Problems of Radion is its price, and for sure its diode's colours, but honestly the durability and the application is good.