Probably a fine heat emitter, but I had to return mine because the damned thing cracked the glass on my terrarium. That says more about the shittiness of my terrarium than the quality of the bulb, but I'll not take chances in the future.

My old ceramic heat emitter burned out after about 3 years. Luckily it was during the summer, so my iguana didn't get too chilly. I placed the order for this bulb through Amazon and received it within a few days...even with the Super Saver shipping option! Happy to say that Dude, the Ig, is quite happy and toasty again spending her nights nestled beneath the new Flukers ceramic heat emitter.