I have 3 Boaphile cages and love them....except for the lighting. I have had nothing but trouble with the built-in lights (which are just fluorescent under-cabinet light fixtures) and have replaced them a dozen times.
The lighting is especially bad for my high-humidity BRB cage - the moisture shorts that puppy right out in days.
SO, I finally got fed up and did an LED conversion on all 3 stacked cages. LED lights are great because they are moisture-proof and I expect to have no problems from now on.
To do the conversion, I purchased one of these 3-light packages: http://www.amazon.com/gp/product/B00...00_i01_details
I took the cords off the built-in lighting and took the fluorescent bulbs out. I then screwed one of the LED strips into each of the three lighting fixtures (1 per cage). The LED strip just barely fits inside the existing light housing, and I just screwed them into the plastic.
I then ran the cords, which isn't perfect the way I did it - the cord exits the light housing on both sides, but you can manage to snap the light cover on even with the cords in the way so that's what I did.
The cords that run between the three LED strips in 3 different cages are short, so I ran them out the front door of the cage and down to the next cage. Some black duct tape keeps the cords nice and neat on the fronts of the cages.
So now I have all three cages, wired in series, running off a single plug on a timer. The lighting is bright enough to see, but not excessively bright. These suckers should last forever and use almost no power. They also produce no heat - the fluorescents that were in there before put out some noticeable heat.