I'd say not.
From everything i have read it's best not to use them for reps with claws as thier claws can get stuck in the guard. They are best used for snakes.
Beardies sense heat best from above so i doubt they'd burn them selves on a red hot light bulb.
I don't use one and probably never will.
1.0.0 x Bearded Dragon (Loki)
0.1.0 x Chocolate Lab (Sadie)