This AC power adapter AC to 9V 1500mA employs latest technologies to achieve excellent regulation, high power density and safety with good EMC performance. The primary side regulation (PSR) 9 Volt AC power adapter can provide accurate constant current (CC) regulation without optocoupler and secondary control circuitry to enable low standby power consumption and cost effective solution. The 9V AC power adapter comes with exchangeable AC plugs optional for EU, US, AU, UK, JP, CN outlets for worldwide travel. The AC power adapter AC to 9vdc 1.5 amp as well as 9V 2.5 amp AC adapter meet all green energy initiatives and offers a wide range of safety features including over-current protection, over-load protection, short-circuit protection to prevent the circuit from being damaged in abnormal conditions.