1)12V40AH DC Rechargeable Sealed Lead-Acid Battery
2)Overdischarge & Overcharge Protection by controller
3)Indicative light of charging.Can charger by the AC Power or by the solar panel.
4)one electrical USB outlet of DC 5V for the moblie phone to charge
5) seven electrical outlet of DC 12V for the 3W LED lamp or 12V DC fan or 12V DC TV to use
6)one input DC 17.5 for the solar panel to contact to charge the battery
7)Working time:more than 13 hrs for 2 lamps + 16 desk fan + 15 LCD TV