The point in trying to make is in order to have success with Sps, it's best to stick with proven lighting systems. With metal halides, you need a solid reflector with good proven bulbs like radiums. If buy cheap Bulbs and your Sps are brown then it wasn't the metal halides it was your bulbs/reflector combo. If you buy the cheap LEDs and your corals are lacking color then maybe it's not the LEDs but your fixture. If you buy a cheesy t5 fixture and the growth/color is not great. Maybe you should have gotten a proven t5 fixture. Pick one of the three and make sure it's proven.