OLatus Power Supply DC 9V 1A For Arduino-UNO R3 MEGA Power Supply Electronic Hobby Kit

High quality switching AC to DC wall power supply manufactured specifically for Electronics. These are switch mode power supplies which mean the output is regulated to and the capable output current is much higher (650mA).Introduction switched mode power supply (smps) is advance power supply and batter then conventional ones. If you want low losses and stable output also you don't want to make a rectifier, so go for smps.