NO HOTTER AT ANY TIME than 42-43 degC ANYWHERE in the tank EVER.
See
viewtopic.php?f=5&t=233516
Make sure the 10%UVB tube is positioned so there are no screens or mesh between it and the basking spot.
Is the 10%UVB tube a T8 or a T5HO tube ? This is very important.
Try to aim for 180-200 microW UVB / sq.cm at the basking spot and 100 microW UVB / sq.cm elsewhere, see
viewtopic.php?f=34&t=235611
Also aim for about 15hr of heat, white light and UV per day.
For a baby / hatchling beardie - it's much more important that he get's his fill of high quality dusted (with calcium) insects at least twice per day ( 3x per day is better ), offer the live insects a few at a time and keep offering them til he looses interest ==> he is full !
Offer shredded high calcium greens daily , but if he doesn't show any interest - no biggy - gut load the roaches or crickets or locusts with the uneaten greens and he'll get them that way.