Radium burn in time?

[Reeftanker3295]

This morning I installed Radium 20k bulbs and they are even brighter and more white than my Phoenix 14ks! Do they turn more blue as they burn in?

 

[ecvernon]

I was using 150 watt radiums and they were whiter than pheonix. She shine bright white with a little blue Guess thats why they have higher par

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