Tesla's Lamp USB Plasma Ball
The globe is a sphere that has most of its air replaced with 3 noble (inert) gases – neon, argon and xenon. A high frequency alternating current electrode is in the centre, which discharges and excited filaments the strike inside the globe. When you touch the globe, these filaments are attracted to the spot. This globe runs on power from USB and batteries, and is 7cm dia.
The perfect geek gift for teens and adults who love science and all things mesmerising!
WARNING: This item is not a toy and should not be placed near sensitive electronic equipment and is not suitable for people with a pacemaker.