Hi Abha the GIO is just a grounded bracelet thing that allows you work grounded on the computer or sleep grounded. Like most of the other products, you need a grounded electrical outlet to make it effective or do the rod thing. Dont know about the lightening question, never thought about it. Guess I've been doing it for about two years now. I also started using something called the MRS 2000, which you can google. Certainly seems to help with my symptoms, but as always, I cant be sure if that is an associative or causative relationship. Think the website for GIO is GroundItOut - its an american product, but a nutrionalist called Niki Gratrix stocks them in the UK, or did, her websites should come up if you google her name.