The best fluorescent tube that we’ve ever used for our reptiles’ UVB requirements! A 5.0 UVB Reptile Lighting Fluorescent Tube means that 5% of the tube’s output is UVB. This UVB is necessary for your reptile’s synthesis of vitamin D3, which is essential for the effective metabolism of dietary calcium in its bones and blood. Now protected by heavy duty Kraft thick-wall tube to compensate for Amazon’s shipping inadequacies and UPS’s irresponsible abuse. Some reptiles require more or less UVB than others. Chameleons and similar reptiles require less UVB than desert reptiles and a 5.0 tube is the better choice. We also prefer to use the 5.0 tube for our translucent bearded dragons and for our silkback bearded dragons (“silkies”). This 5.0 UVB T5HO 39W 34″ Reptile Lighting Fluorescent Tube fits the Carolina Custom Cages Reptile T5HO 34″ Standard Fixture & Reflector. This 5.0 UVB T5HO 39W 34″ Reptile Lighting Fluorescent Tube with the fixture listed above is a superior addition to the habitats of various chameleons and similar reptiles. Animal should be no closer than 10” directly under the fixture and no closer than 6” diagonally from the sides or ends of the fixture. We have also included a bottle of our Chlorhexidine Solution 2%; 1 refill makes 32 oz. of working solution – just add water! This is the best cleaner for your reptile’s habitat; used and recommended by exotic animal vets for cleaning your cages and other habitat items. Basically, you spray and wipe and then if your reptile licks where you just cleaned, it won’t hurt them. Great for daily maintenance cleaning as well as monthly cleaning from top to bottom. See also our Carolina Custom Cages’ listing for “Chlorhexidine Solution 2%; 32 oz. Sprayer, plus 2 refills” and our listing for “Chlorhexidine Solution 2%; 3 refills make 32 oz. each of working solution”. Carolina Custom Cages is a division of Carolina Designer Dragons, Inc.; a boutique breeder of bearded dragons, selections on our website.