you need a second hole or something to allow fresh air to get into the bulb, or else you'll be sucking up your weed when you hit.
Pichacho Reviewed by Pichacho on . Lightbulb vaporizer question. I am in the process of making a lightbulb vaporizer and I was wondering why do u use 2 straws? Don't u just need one to suck the THC up? Or is it one straw and something else? Rating: 5