Coupled with the updated energy-saving technology, it offers very impressive operation ***** remains unchanged because of high-precise voltage-stabilizing circuit.5500k color temperature delivers excellent color uniformity of nature.60 perfect beam angle for videography.Contents of carton:1*Twins Video Light1*7.4V2.3h Lithium Battery1*Universal voltage desktop Charger1*Straight Bracket Specification:model : BL-LED10Duration(Approx.): 300minutes for single lamp 150minutes for double lampsBattery: 7.4v2.3mah lithium reBulb: LEDBeam Angle: 60color Temperature 5500k(+300k)CBCP: 5W250CD/10W 500CDCharger Universal voltage desktop charger