Both feature dual 12v and USB ports.
Explorer 10: Folded dimensions 6.2 x 5.25 x 2”, 22 oz. 12 volts 625mA, 5 volts 1000mA (USB)
Explorer 20: Folded dimensions 8.5 x 8.5 x 2”, 36 oz. 12 volts 1250mA, 5 volts 1000mA (USB).
Have had this for a few weeks now it works great if its flat and the sun is high over head.
if you are like me and Hiking-Biking while trying to charge something you may be disappointed I have had it charge the battery one day and fail to do so the next. I have to believe that the reason it did not charge was because it was not on a flat surface and will be making a light weight flat panel to attach it to on my next trip. good luck if you decide to purchase this.
WHY NORTH RIVER OUTDOORS?