Black matte warmer will melt your candle from top without any soot.  Can be used with wicked or wickless candles.  Made by Candle Warmers Etc.
 
Design: Simple black matte finish with a frosted white shade is versatile and fits into most home decor styles.
Features: Top-down warming technology provides the look and fragrance of a lit candle without the flame. NP5 bulb, included, can be replaced when it wears out.
Use: Accommodates most jar candles 14 oz or smaller and up to 3.5" tall.
Dimensions: Overall dimensions are 6.4"x4.4"x4.1".  Cord is 3ft with roller switch.
Warranty: This warmer  has a 1-year limited warranty from Candle Warmers Etc..  Click here for warranty registration.