Maybe when the prices go a little down I may try those types of light but as for now just way too expensive for my Blood!! Do you run LEDs on your system FISHfishy??? I would luv ta see if you do and see pics of the Growth and health of your corals!!!Sorry I'm stuck in the OLD school type lights!!!Very similar to Halides except a lot more controllable and whereas most of the energy in Halides goes to heat, with LEDs, the vast majority goes to light and to wavelengths desirable for coral.