I just realised that your misunderstanding of the product description for Arcadia Jungle Dawn led lights may lead others to believe that Arcadia, a company as you rightly say have 'put a lot of research into the best lighting for vivariums and the animals they contain' DON'T recommend UVB lighting for 'day geckos, crested geckos, chameleons, snakes and all other reptiles and amphibians'. I can assure you that in this you are ABSOLUTELY INCORRECT. Jungle Dawns are an excellent full spectrum light source that is used in conjunction with UVB. On Arcadia's website, they have a number of well researched and described recommendations for lighting for a good number of species, all including UVB:
American Green Tree Frog.
http://www.arcadia-reptile.com/wp-co...green-frog.jpg
Horned Frog
http://www.arcadia-reptile.com/wp-co...orned-frog.jpg
Fire Bellied Toad
http://www.arcadia-reptile.com/wp-co...belly-toad.jpg
Leucomelas Dart Frog
http://www.arcadia-reptile.com/wp-co...-dart-frog.jpg
Day Geckos
http://www.arcadia-reptile.com/wp-co...-day-gecko.jpg
Crested Gecko
http://www.arcadia-reptile.com/wp-co...sted-gecko.jpg
Yemen Chameleon
http://www.arcadia-reptile.com/wp-co...-chameleon.jpg
Corn snake
http://www.arcadia-reptile.com/wp-co...corn-snake.jpg
There are many, many more and are a really useful resource.
I'm trying to explain the subject matter in as simple terms as possible but I'm concerned that you don't seem to be able to grasp the information. It's probably my fault, but I'm not sure how I can explain things more simply? As I said, if there's any part you're still not understanding, feel free to ask any specific questions.