How close can the dragon be to the UVB and basking l

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How close to the UVB and basking lights are too close? Will the dragon stay far enough away from the sources to not get hurt or should I make adjustments to the cage so he can't get close to them? See the image below.

 

[Taterbug]

Reptiles can and do get close enough to lamps (especially heat) to burn themselves. Out of reach (6"+) is the minimum, many basking lamps have a spot light effect that doesn't go away until 12-14" away though.

UVB (it oils liek you have a T8) should be no closer than 6"