I currently run 250 watt XM 10k bulbs on my IceCap ballast. This is too yellow for me , wanting to go more on the blue side. I'm wanting opinion's for 14k-20k bulbs that people are running on an IceCap ballast. I know a lot of people are running Radium's but does this bulb fire on an IceCap ballast at the correct kelvin rating since your not over driving the bulb?