yeah man theyre safe as long as you remember to keep the bulb at least an inch if not two above the flame. dont let the glass touche the flame, that will jsut turn the thc into smoke, making the "vaporizer" pointless.

also, use a candel, not a lighter cuz it takes a few miunutes for the vapor to appear and you shouldnt ever hold a bic on for longer than 30 seconds cuz it can overheat and blow up
NightProwler Reviewed by NightProwler on . Light Bulb Vaporizer Question... So I have been smoking for quite some time now and have started realizing that a vaporizer is going to save my lungs a ton. Are the light bulb vaporizers really safe if cleaned out properly? Rating: 5