Source: https://www.amazon.com/GOAL-42020-Venture-Solar-Recharging/dp/B00TY2HXE6/ref=as_li_ss_tl?ie=UTF8&qid=1440095379&sr=8-1&keywords=goal+zero+venture+30+solar+recharging+kit&linkCode=sl1&tag=natupapa-20&linkId=a676d480a0aef9818f55cc3a5fac896c