Discount Price Link First Comment. 4000W 12V to110V/220V Solar Panel Charge Inverter Solar Panel Battery Controller Solar Inverter Kit Complete Power Generation Review Aliexpress. The 4000W 12V to 110V/220V Solar Panel Charge Inverter, available on Aliexpress, is a part of a solar inverter kit designed for complete power generation. This inverter allows you to convert solar panel-generated power efficiently, enabling you to charge batteries and power devices. The kit is a comprehensive solution for harnessing solar energy and includes a battery controller for effective energy management. Explore this product on Aliexpress for a complete and efficient solar power generation system for your needs. solar panel Size: 480 * 280 * 2.5mm Open circuit voltage (voc): 20V Maximum power voltage (vmpp): 18v Short circuit current (isc): 1A Maximum power current (impp): 0.75 Output: 12V Weight: 400g