LAVA Lamps have continued to captivate for over 50 years. It has one of the most recognized, trademarked shapes of all time. LAVA Lamps produce soft warm light and mesmerizing visuals of everchanging, moving wax, gently rising up and down. Yellow wax / purple liquid / silver base & cap. Provides relaxing, soft light. Aluminum base. 40 watt light bulb included. Plugs into a power outlet.