1.  Provide “Over charge” & “Over discharge ” protection for solar charging batteries
2.  Regulate up to 20W of solar panel charging
3.  Fuses to protect the product from damage caused by over load or short circuiting.
4.  3V, 6V, 12V output available for charging many different DC appliances.
5.  Aluminum alloy casing to increase heat dissipation
6.  Size of the product: 100X90X30MM