... source80W high-brightness LED, life span>50000h, illuminance >28lux with 10m height& 30m in horizonSolar panels80W x 2. imported ... use of low speed wind. Internal rotor generators with RDM independent intellectual right, with light weight & high efficiencyLead-acid batteryValve-controlled lead-acid ... -discharge, over-charge, reverse, output circuit & over-load ,with automatic unloading functionNotes: