I curently have a 75watt house bulb and a 10.0 repti glow strip light in one cage and a 75watt house bulb and a 5.0 spiral repti glow in the other. Cage size is 2'lx2'wx4'h. The problem I've having is the cages seem dark. I'm trying to find a balance between the cages getting to warm and the cages being too dark. I have a lot of plants in each cage so there is a lot of darker shaded area and even at the top it doesn't seem very bright. How do you guys keep the cages well lit?