... , we can also do some special design for you Model No.Specifications SBD28B651, Solar panel: 0.7W. 2, Battery: 3.6V / 900mAh ... . 4, Working time after full charge: More than 15 hoursSBD30B651, Solar panel: 0.7W. 2, Battery: 3.6V / 900mAh. 3, LED ... . 4, Working time after full charge: More than 15 hoursSBD806B651, Solar panel: 0.7W. 2, Battery: 3.6V / 900mAh. 3, LED ...