I whole heartedly believe the "intensity" is way over looked by most people and if they give it a try, they will be hooked as I am.
With that being said, I must STRESS, go for the intensity after the UVB needs are met. If one can use Mercury Vapor in the stack of light then by all means, use it.
Example:
I had Cuddles under a Merc. Vap. in her quarantine tank and it just recently started turning off periodically (dieing).
Anyway, I replaced it with a small UVB strip and a basking bulb. This seems to give off more light and definitely more heat (the temps don't lie)
However, she is now showing the belly circles???
I am stabbing in the dark here but I am comfortable saying, " I think she was more comfortable under the Merc. Vap."
I must also confess the possibility that it may also be stress related. Any change in environment can cause stress.
So, Stress, Comfort, UVB ?? Or a combo??
Sandy has said good night for a while so I am going to switch bulbs and see what happens.
I'll let you know.
Joel R