Jane Bernard Blue Dolphin Design Fragrance Oil Warmer - Free Scented Oil and Extra Replacement Bulb - Use for Home Fragrance Great Home Decor Enhancement. Add 20 drops of your favorite fragrance oil or tart melts Can function as a night light NO SWITCH. Electric Oil Burner, turns on and off by touching the chrome part of the lamp. The unit comes with light bulb and glass top oil dish . It has 3 levels of brightness, low, medium, and high. Extra Bulb and Free Oil included