Lantern 807/ 6 or 8 LED/SMD eyes – Please explain battery power -need high Ah capacity? Rdio/MP3 / SD card Double PV

•Solar panel: 4W • Solar panel with 5m cable
• Battery: 5Ah/6V Lithium battery
• Output: 5V USB
• Load: Extra 2 PCS 3W LED light
•Lighting about 8hr after full charged