Spotlinght bulb: Use 19 long life and high brightness LED lamp. Inside there is a 4V4AH lead-acid battery, which could recharging more. than 200 times and free maintain. Inside there have constant current charged with limitied voltage and overdischarge protection control circuit. The protection circuit can prolong battery's life. Input voltage :AC 220V/SOHz. Lighting time without interruption:powerful 10 hours, weak 16 hours Packing: color box; 16pc/CTN ;Meas: 56*47*37