Lava Lite 2150 14.5-Inch 50th Anniversary Lava Lamp, Yellow Wax/Purple Liquid/Gold Base Classic, iconic shaped lava lamp with glass globe for home, dorm room, or office. Soothing, slow-moving bubbles.The heating process can take up to 8 hours before proper lava flow begins Glass housing with steel base and matching cap. Electrical cord with inline switch for plug-in operation; 25-watt incandescent bulb included. Trouble-shooting tips can also be found on website - http://www.lavalamp.com/UseCareGuides. 90-day limited warranty. For any further queries please contact Lava Lite Customer Service at (800) 336-5282 weekdays 8-5 CST or info@lavalite.com.