4 Pack 12V DC 1A Power Supply Adapter 

( DC 12V 1000mA )

• Input: AC100V-240V 50/60Hz;
• Output: 12V DC, 1A max;
• DC Plug Size: DC plug connector external diameter is 5.5mm, internal diameter is 2.1mm;
• Cable Length: 45 inches;
• Works with device that draws less than 1A, such as 100ma 300ma 450ma 500ma 600ma 650ma 700ma 800ma 900ma 1000ma.