Product Review
Ideal for small projects:
Such as emergency lights, advertisement lamps, traffic lights, household lights, electric fans, solar water pumps, solar street lamps, etc.
Features:
Material: polysilicon
Max. power: 3W
Max. voltage: 12V
Max. current: 250mA
Size: 145*145*2.5mm/5.7*5.7*0.1in
Weight: 80g/0.18Ib
Package Content:
1*solar panel
Configuration Relationships between solar panel and storage battery
   Storage Battery        Solar Panel
      1.2V            2V ~ 2.5V
      2.4V            3.5V ~ 4V
      3.6V            5V ~ 6V
       6V            7.5V ~ 9V
      12V             15V ~ 18V
When the voltage of your solar panel doesn't satisfy your storage battery, you can take two or more same solar panels together in series. Such as, two 5.5v solar panel connect together in series, so its voltage is 11V.
When the voltage of solar panel satisfies your storage battery. In order to speed up the rate of charge, you can take two or more same solar panel together parallel connection.










