Bearded Dragons can "live" without the UVB, but will develop degenerative bone diseases which can cripple them and eventually kill them. I would not take a beardie outside until he is at least 3 months old, as they jump like crazy. They are very skittish and can think a butterfly will eat them when they are young. I thought my year old dragon I adopted would be fine, a sparrow flew by and he jumped off my shoulder and made a beeline for the fence before I even could think, "There goes a hundred bucks."! If you do take him out, keep him in your hand or in a large Rubbermaid storage bin with the top off. Do not leave him by himself. Even mocking birds will try to eat a baby beardie and ants are not their friends. If he jumps too far he could injure himself, so just be aware.
I just realized, you might think the night light is UVB. The blue light does not emit UVB spectrum light. It does nothing but emit heat and isn't really needed. Make sure your day light is a 10% UVB one. All lights have UVA spectrum, but most lights have films on them to filter out the UVB The long UVB tubes will keep him going. Nice to have the basking light one with UVB too, but that has to be kept 12-16 inches away from the bottom of the tank with no interference from screens or glass preferred. You have to monitor the temperatures pretty closely, until you figure out how your tank in your location will hold the temps. The coil lights are not very reliable, but they are better than nothing, just keep it up about 14 inches from the bottom of the tank. They can cause eye problems and can go from less than 10% UVB to way too much during a 6 month period. If yours is new, use it until you get a better one (just not more than a couple of months). Go read up on lights in the care guides. At Beautiful Dragon they have tables that tell you which brands did the best in their tests.
It is sort of tricky to advise you, because there is a lot of variables. You should read about 10 different people's care sheets and see if any offer pointers for your situation. Beautiful Dragon .com was where I found my information a couple years back. They have some great guides that I do not follow 100% for good reasons. Just like every parent thinks they know what is best for their kid, most experienced reptile keepers develop their lists of taboos and such. You will have to sort of look at all advice as a guideline. This site has guides too, just go back to the main menu, they are at the top I believe.
As long as you pay attention, write up the specific about how you are handling your dragon in a notepad or word program, then ask questions on the forums including your care and handling practices, others will be able to point out if something you are doing could just kill your dragon. Otherwise, follow your best judgement, don't panic. It just never helps.
Dragons need to be kept warm during the day, they need more uvb than most reptiles, they should be trained to eat vegies, then their live feeders. If they should eat wild feeders, do not panic, but here on the Gulf Coast of Texas most insects carry parasites. If your beardie eats too many, he will suffer. I have chickens and do fecals every 3 months, then worm them most times (because the parasite eggs in the fecals are too many to count). There's just that many parasites in the soil here. So my dragon is never allowed out on his own. I do let him swim in our very clean koi pond, but then I give him a shower and dry him off.
Dragons need a cool place to rest and shed. A
bath while they are shedding helps, but then they need to bask to dry off in between the shed and the new skin. So
bathe earlier in the day. Try not to help pull off the shed most times. I pulled off one, and it changed the new skin's coloration and the dragon was pretty upset for a day or two, because he would burn under his light when he basked. I will never do that again. It took another shed before he looked good again.
Sounds like you are off to a good start, asking questions and such. Print out the guides you like, so you can refer to them even if the internet isn't available. With Amazon Prime there are several guides for free for Kindle users. Sorry I was busy and couldn't answer yesterday.
Try to make sure to read up on bone diseases and their symptoms. You probably already have watched the You Tue videos of them head bobbing and waving. When they talk about bone metabolic diseases, they mention shaking limbs, trembling, tail problems, and not being able to use a leg. Make sure you know the difference between hand waving and a problem. A young hand waving dragon is just saying hi to his reflection. If he puffs up and his throat turns black, he is trying to intimidate himself into hand waving. Neither behavior is a symptom of anything.
Just take him outside and hold him and maybe show him around your yard?
