1)12V9AH DC Rechargeable Sealed Lead-Acid Battery2)Overdischarge & Overcharge Protection by controller3)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 charge5)3 electrical outlet of DC 12V  for the 3W LED lamp  to use6)One input DC 17.5 for the solar panel  to contact to charge the battery                                                                                                     

7)Working time: more than 10 hrs for 2 lamps