タイトルまたは説明

 Parameters：
1.Solar module：*7.5V/8W
2.Storage battery： lead-acid battery 2x6V 4Ah
3.System output：***2V/*0Wmax.& UBS 5V/**0mAmax.
4.lanterns：2x LED *2V 2W / E*7 lamp head，each 5M and 8M qire with switch
5.Dimension of whiteboard box:*9**7.8*8.5cm,
6.Weight in total:3.8kg 
7.the system has the additional functions: signal for residual capacity, overcharging, onerload, short circuit protection.
 8. the power system is a must for  travelling, outdoor ues.