Max Power 200W Working voltage 20V Open circuit voltage 24V Maximum working current 10A Short circuit current 12A Foldable Size 67.5*44*2.5cm (26.57X17.32X0.98 inch) Expand Size 176*67.5*0.4cm (69.29X26.57X0.15 inch) Weight 5.3kg/11.68lb Adjustable bracket The angle of the sunlight can be adjusted between 45 and 60 radians in order to get the best charging effect. Monocrystalline cell A-grade monocrystalline solar cells feature the fastest charging speed possible with an energy conversion efficiency of up to 21%. Charge Controller suitable for ：lead acid batteries， lithium ions Build-in short-circuit protection,open-circuit protection,reverse Portable Solar With a robust carrying handle, the weight only 11.68lb，Folding area is small, light and thin, does not take up space, suitable for outdoor travel. FQA Q1：Why does the solar panel show no power output of 200W. The power production of solar panels is affected by many factors. The irradiance of light and temperature are the main factors that affect the power generation of solar panels. 200W power rating is the power tested under standard conditions (lrradiance 1000w/m2, Temperature 25°C, AM=1.5). The irradiance and temperature of the light are constantly changing and there are efficiency losses in charging mobile power plants. There are also portable power supplies that have power output limitations. Please check the manual of the portable power station when using it. Q2：What do I need to pay attention to when connecting solar panels? 1, when used with the controller, please connect the controller to the battery first, and then in the connection of solar panels. 2, portable power station built-in controller. When charging the portable power station, there is no need to connect the controller. Q3:Do I need a controller for charging solar power station? No, the portable power station generally has a built-in MPPT function, so there is no need to connect the controller early in the charging process.