These unique electric fragrance oil lamp are designed to fill the area with a refreshing aromatic scent. You are in control ~ Use the dimmer to adjust the halogen light to warm the oil a little or a lot, depending on how much scent or light you want in the area. The fragrance oil lamp can serve as a nightlight, or create a relaxing mood with soft light and sweet smelling scents. Simply place fragrance oil or a wax tart onto the small glass plate on the top of the lamp, plug it in and adjust the dimmer. Always let the lamp cool before adding more oil or wax to the glass plate. This oil warmer uses a 35W halogen bulb. Replacements are available at most hardware stores.