Parameters：1. Solarpanelefficiency 16%2. solarpanelpower：10W,20W,30W,40W(optional) eachunit10W,itisflexibleandeasytobeassembledto20W,30W,40W,solarpanel,andsoasdisassembled3. solarpanelworkingvoltage：20V4. solarpaneloutputcurrent：0.5A,1A,1.5A,2A(for10W,20W,30W,40W)5. batterypack：Li-ion,20000mAh,3.7V6. 46x34x5.2cm7. Weight:2.8kg(10w)3.43kg(20w)4kg(30w).4.6kg(40w)8. Batterypackoutput:3V,5V,6V,9V,12V,16V,19V,22V,24VApplication:laptops,notebook,mobilephone,digitaldevices,transceiver,Teamcommunicationsystem