... and rechargeable battery,it is store sunshine for night The Sun Jar is one of the most sought after gadgets on ... LED lights. It only takes a couple of hours of sun light to charge up the batteries which are then used ... jargon above, we like to just think of the Sun Jar as a jar that stores the suns rays and ... on a windowsill which receives at least 2 hours of sun a day. You can them move the jar anywhere ...