12V/500mA Switcing Power Adapter information as following, this model have UK US EU models.

[Technology Parameter]
@Input Voltage: AC100-240V/50-60Hz
@Input Current: 0.2A(max)
@Output Voltage: DC 12V
@Output Current: 500mA
@Efficiency: 70% min
@Ripple&Noise Limit: 120MVP-p max
@Standby Power: ≤ 0.3W

[Safety Index]
@Temperature: ≤ 50
@Insulation Resistance: ≥ 50MΩ
@Over Current Protection: 120% min
@Short Circuit Protection
@Over Voltage Protection: 120%min

[Environmental]
Operating Temperature: -20-55
Storage Temperature: -40-85
Operating Humidity: 10%-90% RH Non-condensing
Storage Humidity: 5%-95% RH Non-condensing

Safety Standard]
@CCCGB4943, GB8898
@EN60950
@ESDEN61000-4-2
@UL60950,
@CSA60950ITE/TE
@EMCGB13837-1997, GB17625.1-1998

[Certification]
@CE CB UL GS PSE Certificate