“I have Science background and I bought it for a 5 year old friend of mine . It is EXCELLENT in so many ways ! 1. It is KNOWLEDGE - patented by Nikola Tesla in 1894 , it demonstrates electrical current in ‘PLASMA’ - ions and electrons separated from each other by an electrical current through the gasses allowing the free electrons to form electricity themselves !!! For a 5 year old at the beginning of that learning it is a bit of MAGIC !!! in the world ! a bit of WOW and HOW AWESOME !!!
It is also really good it has USB powering as the batteries run out fast and they are expensive.”