My dad and I just built a new cage for my veiled chameleon with dimensions of 4' 2' 2'.(pictures will be up soon!) But I was just wondering if I would need a bulb that produces 75watts or 100 watts? And do I need to change my Reptiglo 5.0 UV tube to a 10.0? If anyone out there has the exact dimensions; I would love to see your setup to give me some ideas. Thanks.