Are you asking about the night lights that add heat to your beardie's tank at night when the temps get to cold? If so, unless your beardie uses a hide that means he won't see the lights at night I would suggest a Ceramic Heat Emitter.
Then a CHE would do the job.. they plug into a regular dome fixture and only put out heat, no light.
The colored 'night' lights are not good for them. But, don't use a CHE on a very small tank.