These unique oil burners plug directly into the wall socket without a cord. The burner's gentle heat releases a refreshing aroma without a flame. Use the dimmer switch to adjust the halogen light to warm the oil a little or a lot. Can be used as a night light or to create a relaxing mood. Includes a fluted clear glass dish to warm oil or to melt small tarts. Great for kitchen, bath or bedroom. Always let lamp cool before adding more oil or wax to glass dish. This oil warmer uses a 35W halogen bulb.