ThinkGeek LED Potion Desk Lamp - Color Changing LED Lamp - Perfect for Fans of RPGs and Chemistry WORKS LIKE A CHARM - ThinkGeek LED Potion Desk Lamp - Color Changing LED Lamp makes your space feel magical. Perfect for fans of RPGs of all types and fans of chemistry. A ThinkGeek creation & exclusive BEYOND THE MAGIC -Dimensions: 7" tall x 4" diameter, Weight: 1 1/2 lbs. Includes bottle, base, 6 ft. micro-USB to USB charging cable, and 110-240V~50/60kHz .3A input / 5V 300mA output AC adapter for USB. POTIONS - Bring the potion home with you with this LED Potion Desk Lamp. This little bottle may not look like much, but it's filled with magic. Tap the base and invoke the word "LUMOS!" to light it up. Tap it and whisper "Colovaria" to make it magically change color. It's like an old-fashioned tap-on/tap-off light except you tap this one to change modes: solid red, green, yellow, blue, or a slow fade across the spectrum. A sensor combined with an LED in the base does all the work for you. All IT'S AN OBSESSION - ThinkGeek is obsessed with creating and sharing unique and authentic product experiences that stimulate our fans' imaginations and fuel their geek core. Since 1999, ThinkGeek has been on a mission to create a world where everyone can embrace their inner geek and connect with one another. APOTHECARY EFFECT - Super awesome to stage a row of them all lit up. LED Potion Desk Lamp is made of a glass bottle, plastic base, resin "liquid," zinc alloy charm, and powered by mana micro-. Warning do not imbibe resin "liquid".