dc power supply; 1.Apply for :laptop,led,etc 2.Reliable and ... .small enough to carry around Specification of dc power supply: 1.lnput voltage: AC 100-240V 2.Frenquency: 50/ ... .Voltage precision:5%-3% 7.Ripplesnoise (mVp-p):<1% output voltage 8.Iinear adjustment rate:5%MAX 9 ... ,ADSL AP, Wireless Lan Station, LCD power supply, Hard Disk power supply, Communication Terminals, Any Portable Device or Machine ...