Product size: one hundred fifty * 65MM Product weight: 268g Technical support: 18650 lithium battery Battery capacity: 2200mAH Lighting time: eight hours Package includes: 1 piece of labor tender Because the battery is never allowed to be sent out, please train the battery your self while using the product. The product may be upgraded constantly, the advent and coloration may be changed, please don't mind. And take a consideration earlier than function the order in case you have request for shade or appearance.