CSL Smartlite?

[Bob I]

Originally Posted by Mother Reefer

I think 2x a year would be excessive but once a year would be a good schedual. don't forget Bob is measuring one set of bulbs so the average could be a bit better.

Steve

Thanks, maybe I will go with the PC and change them slightly earlier than the year mark in that case.

Thx guys

It would also depend on the light demands of your critters, and also if you are running more than one bulb. On a two lamp system, I am sure you could squeeze out a year by changing one bulb at a time. I put my bulb back in, and changed the actinic to one that was only slightly used. I also removed the glass cover to maximise the amount of light the tank receives. I will now try for a one year change out target.