1.safety, convenient 2.strong liaght 3.small 4.it can use 5rechargeable battery torecharge with mobile phone chaarger fuction 1.BX-S03 solartorch is aplying to advanced photovoltaic technology,2.it converts the solar eergy into electric power and stored in rechargheable battery for using ,3.it adds the recharge ffunction,More fuction can serve more demand. rechargeable solar torch