-Product size: diameter 11.5mm
                      height 12.5mm
-Light source type: 8 LED lamp beads
-Light color: warm light, white light
-Battery: 1 * Rechargeable battery
              1.2V, 600mAh
-Material: stainless steel, plastic PP, ABS
-Working time: 8~10h
-Charging time: 8 hours
-Protection level: IP65