What bulb for sump/refuge

[Dana]

Sorry I know this subject probably doesn't need another thread, but, I'll go for it anyways.
So my DIY sump is finally up and running, now I want to put some cheato in there. My plan is for the easy clamp on light, but the bulb choices are endless!
Can someone please recommend what exactly I need here. Cfl I know that much but there are hundreds of them at hd. Any particular wattage? Soft white? Links to bulbs you use would be helpful too.
Also I noticed some bulbs with Cree led in them,has anyone tried these yet?
Thanks

 

[Linkfalcon]

Want something in the 6500k range


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[Reefing Madness]

26w 6500k clf

 

[Dana]

Thanks for the input you two

 

[Dana]

The only bulbs I could find at lowes close is 23 watt 5000 k