Function: kill mosquito or winged insect and lighting. Battery: two size 5 battery (namely AA battery),either rechargeable or one-off. Charge voltage: AC220V/50Hz; Work voltage:about 2200v. Have electrical source protect switch,much more security. Bulb: 2.5V/0.3A. Packing:PVC bag: 40pc/CTN: Meas: 51*29*66.5