Can someone please tell me as I'm a bit thick when it comes to electrics if l have a Kampa Gale pump to blow up my 5 beam air tent and want to use a 12v mains adaptor what amp would the adaptor have to be ? Some say l would need 16amp others 10 amp....just a bit confused hope someone can help I'm getting to be an oldtimer now and need some help with my pumping..lol.