Disney Star Wars Darth Vader Light Saber Motion Lava Lamp Officially Licensed Disney/Star Wars Motion Lamps that look like lightsabers In-line on/off switch, 2 R39 E13 reflector bulbs included (max 30 watt) Do not operate for more than 10 hours at a time, Not suitable as a night light Like all other lava lamps it takes a little bit for the liquids to heat up for the wax to really start moving freely, so be patient! AC 120V 60Hz .25A 30W, Dimensions: 18" tall, 4 3/4" diameter base