I would ditch the light altogether... sucks up moisture and is, apparently keeping things too hot.

How are you measuring humidity? They need a steady humidity level of about 60% or so... it's going to be hard keeping it up in a glass enclosure, but there are multiple ways of going about it---reflectix, putting the water bowl over the UTH---you can do a search on here for that. This is where Nate's suggestion of an Accurite comes in handy, too... measures temps and humidity.

Also, she needs another hide... you need one hide on the warm side and one on the cool side.

Check out the caresheets on here... it's good reading!!!