Electric Plug In Lamp, Oil Warmer Diffuser, Tart Burner, Dimmer, NIB. 3”x4”. This is a new item from old store stock. No issues. The lamp plugs into a wall outlet. The off/on/dimmer switch is on the side. There is a glass cup that fits on top that holds the fragrance oil. This has a diamond pattern that reflects the light beautifully. It sits on a mirrored base that enhances light reflection. From a smoke/pet free environment. Ships USPS Priority Mail.