Product parameters:Input voltage: AC100-240V 50~60HZ (worldwide)Input AC interface: EU plug   US plugOutput voltage: (DC) 12VOutput current: 2AOutput voltage accuracy ±0.5% (no load)Power supply polarity: inside positive outside negative, inside (+) outside (-)DC interface: 5.5*2.5 and 5.5*2.1mmLine length: 1 meterColour: BlackCondition: Brand new authenticWide input range and high voltage accuracy Applicable: electronic scale monitoring security blood pressure monitor audio speaker stage lighting development version mobile hard disk switching power supply wireless router monitoring camera ADSL cat, mini small TV, mobile DVD, TV box, wireless audio and video equipment, charging equipment, MP3/MP4, small desk lamp, switch , game consoles, telephones, lanterns, cameras, monitoring equipment, controllers and other household/portable equipment. Precautions for use:※ Please do not use it beyond the rated input voltage and output current range, and it is strictly forbidden to short-circuit the output interface (voltage).※ Please pay attention to heat dissipation and ventilation when using, stop using the adapter when the temperature is too high, and check the reason.※ It is strictly forbidden to use in humid or high temperature environment