[INSPIRING YOUR STUDENTS' INTEREST IN SCIENCE]：Our plug operated lightning plasma ball uses 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 hand touch: and a fascinating way to demonstrate the concepts of voltage, current, and lightning without compromising anyone's safety. [STERILIZE AND PURIFY AIR]: The plasma ball produces large numbers of negative ions to adsorb bacteria, neutralize and precipitate positively charged elements like dust, smoke floated in the air, also It can activate the oxygen molecules in the air to make it easily absorbed, activate diverse body enzymes to promote metabolism and encourage better sleep [TOUCH SENSITIVE]:Fascinating to watch, this Plasma Ball light is even more fun to play with! Just place your fingers on the glass surface and watch as colored bolts of glowing light follow your every move. You can actually "feel" the energy as the light gently tickles your fingertips, Note : use the lightest touch and don't stop moving. [THE PERFECT GIFT FOR CHILDREN OF ALL AGES]: Finally, buy your kids or grandkids a gift they won't turn off until their next birthday! Our Plasma Ball nightlight will make your little budding scientist the envy of all his or her friends. Pretend to be a mad scientist with this ball! Kids will love seeing what happens when you touch it!

Specifications Ball Diameter: 6 inches/15.24 cm Product Height: 9.5 inches/24.13 cm Input: DC 5V/300mA Power: 1.5W Power Source: USB or 4 AAA batteries(not included) Diameter: 6 inches Package Contents 1Plasma Ball 1USB Cable 1* Package Box

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