The glow bowl fragrance system is a beautiful way to fragrance your home. The scented glow bowl gel is warmed by a low watt light bulb, as it heats up, the scent crystals release the fragrance into the air. The light from the 7 watt bulb shines out through the colored glow bowl gel producing a soft glow. These air fresheners make wonderful night lights. The bulb never comes in direct contact with the gel because it is actually outside of the glass container. Once the glow bowl gel has been repeatedly warmed up, it will eventually lose its moister due to evaporation. The gel can be rejuvenated simply adding a little water to the bowl. The glow bowl unit consists of a wooden stand that has a 3 foot electrical cord attached, a 7 watt light bulb, and the glass bowl. The gel is not included but is sold separately.