Biederman and Sons is carrying some now. A one piece electric with a decent size well that hold over an ounce of oil or a good size tart. Its a 15W and I get a good throw from it, I can put it in the middle of my house and smell it all over. Call 1-800-446-8150 and they will send you a catalog. Another place to check is Ganz. They only sell to businesses and a rep has to come to sell to you but they have them that use light bulbs and regular elctric ones also. HTH