INSPIRE YOUR CHILDRENS INTEREST IN SCIENCE. Our candle-powered spheres use a Tesla coil to generate a potential difference between it and the surrounding gas-filled globe. The result is a mesmerizing static electricity display that responds to both tactile touch and speaker sound: and a fascinating way to demonstrate the concepts of voltage, current and lightning without compromising anyone's safety . BALL LIGHT SIZE: 10 x 7.5 x 14 cm / 3.9 x 3 x 5.5 inch (Bottom Dia x Ball Dia x Height) Material: ABS plastic socket, glass lampshade, Led light Plasma is small enough to not take up too much space so it's a great item for any desk. And it's big enough to amaze everyone. STERILIZE AND PURIFY THE AIR: The plasma ball produces a large number of negative ions to adsorb bacteria, neutralize and precipitate positively charged elements like dust, smoke floating in the air, and activate oxygen molecules in the air to absorb them easily. various body enzymes to support metabolism and encourage better sleep TOUCH SENSITIVE: Fascinating to look at, this Plasma Ball Lamp is even more fun to play with! Simply place your fingers on the glass surface and watch colorful bolts of glowing light follow your every move. You can actually feel the energy as the light gently tickles your fingers. THE PERFECT GIFT FOR CHILDREN OF ALL AGES. Finally, buy your children or grandchildren a gift they won't be able to put down until their next birthday! Our Plasma Ball Flashlight will make your little budding scientist the envy of all their friends. Pretend to be a mad scientist with this balloon! Kids will love seeing what happens when you touch it!