Just wondering how these bulbs are looking after a few months now? How do the 14k's compare to a Radium? Any other issue's? I'm tossed between a Hamilton 14k and a Arc 14k...

Walter

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I've only seen the 400 watt radiums in action. The Radiums are more blue than the ARC bulbs after the burn in period. I also suppliment with 10k and actinic PC bulbs to brighten things up a bit because the ARC bulbs are still pretty blue.