I'm currently running a 400 watt SE radium on my sps dominated setup and was considering swapping it out with a 250. I'm fairly happy with the coloration and growth I'm getting with the 400 watter but would like to experiment to see if I can get deeper colors with a 250. Anyone here have a old 250 watt SE radium bulb laying around that I can borrow for a couple of days just to test it out. I just want to make sure I'm happy visually with the bulb before making the purchase for a new one. Some feedback would be nice too .....thanks!