"Package includes:1 x Power Inverter2 x Battery Clip1 x Cigarette Lighter Plug（gift）1 x English ManualSpecifications:Model: SP4000(Black and Yellow For your choice.)Name: Car power inverter 4000W.Input voltage: DC 10.5V~15V,(When the battery voltage is lower than 10.5V, the inverter is low voltage protection, when the battery voltage is higher than 15V, the inverter high voltage protection)Output voltage : AC 110V /220V for your choiceOutput frequency is: 50Hz for 220V model /60Hz for 110V model.Peaks Power : 4000WRated power :300W