Decoration Light : This plasma ball lamp is great for decoration. Put in your room, living room, office, or anywhere to create a super cool science like atmosphere, adds a bit of fun to any room. Its a perfect gift to your children or friends. Scientific Education : plasma ball night light is dazzlingly bright under total darkness. Child will be mesmerized by the impressively vivid streams of reddish-purple light, and a fascinating way to demonstrate the concepts of voltage, current, and light without compromising anyone's safety. Touch Sensitive Experience : When you get the plasma ball, 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, very surprise and interesting. Guarantee - We test and improve our products constantly to provide you the absolute best quality at the most excellent every day price possible. If any concerns, send us an e-mail and we will get to you in 24 HOURS. We will give You a 100% refund if you are not completely satisfied with purchase! USB or Battery Powered : 2 ways of power supply. 100% safe power supply methords: the plasma light ues USB or 4x AAA batteries (not included), provides a great scientific and safe learning experience for children. Very convenient to use. Show your children the mysteries of science and have a wonderful magic show!