Description Feature: Brand new and high quality Support 4 USB interfaces to work at the same timeeasily meet the power supply needs of diverse vehicle electrical appliances. 12V is generally for cars 24V for trucks 48V and 60V is generally for electric vehicles. Available Range Of Rated Voltage Of Electrical Appliances : 200~240V 100~120V Safe Range Of our inverter Input Voltage:12V (9.8~15V) Specification: Color: Black/Red Name: Car power inverter 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 choice Output frequency is: 50Hz for 220V model /60Hz for 110V model. Peaks Power : 4000W Rated power: 300W Output waveform: Modified sine wave Product Size:19.5*10.5*6.8cm CAUTION: This is a modified sine wave inverterNOT applicable for devices which work by built-in motor hair dryersair conditioners coffee machinewater pump induction cookerrefrigerators and microwave ovens etc.Make sure that the total rated power of the connected devices is 400W Tighten the Positive (+) and Negative (-) terminals when the car converter is in use If the converter is directly connected with the cigarette lighter. The highest out put power must be under 150W. If higher than 150Wwe strongly recommend you using the Crocodile Clips to a battery because car cigarette lighter might not afford power over 150W. The car converter suitable for DC12V and Car ONLY not applied for DC 24V and airplane Please do not leave the inverter in the ON position before car start.Its easy to damage the inverter before connected to the battery.The correct operation is connect to the battery first and then turn on the inverter switch Its normal for the inverter to become warm while you are using it.In order to get the best using results please put the inverter on the flat surface The working place should meet the following criteria: Keep dry should not let the inverter contact the water or other liquids keep the inverter away from moisture or water. Cool environment keep the temperature between 0 Celsius degrees and 40 Celsius degrees. Do not put the inverter next to heat vents or other devices. Try to keep the inverter not be shined directly by the sunshine. 8 Safety Protection Function: Reverse polarity protection Low input voltage protection High input voltage protection Over-current protection Short circuit protection Over temperature protection Overload protection Internal fuses Package Included: 1 x Power Inverter 2 x Battery Clip 1 x Cigarette Lighter Plug(gift) 1 x English Manual NO Retail Box. Packed Safely in Bubble Bag.