Obsidian Glass Illumination Warmer Obsidian Illumination: Marbled white swirls flow through black hand-blown glass to gently highlight the glow of the Obsidian Illumination. * Illumination Fragrance Warmers use a halogen bulb to warm wax melts in the dish, releasing their fragrance. * The soft glow of the bulb creates the ambiance and fragrance of a lit candle, without flame, soot, or other pollutants. * Elegant home décor is the focus of every Candle Warmers Etc. product, and each is made to complement your personal taste. Simply add wax melts to the dish, turn it on, and enjoy your favorite fragrance as it spreads through the room. R- Many of our products have reactive glazes, hand-painted designs, or varied finishes which give each piece a one-of-a-kind look. The final finish of products marked with an R will vary from piece to piece. PLEASE NOTE ONLY SUITABLE FOR SOFTER WAXES AND NOT SUITABLE FOR PILLAR.