
80 PLUS is an initiative to promote energy-efficient power supplies in desktop computers and servers. With advancement in existing technologies, 80 PLUS has set higher certification standards to include bronze, silver and gold.
http://www.80plus.org/
Active Power Factor Correction PSU will automatically detect whether the input voltage range is between 90V~264V and adjust compatible output voltage. The PF value is much higher than Passive Power Factor Correction.

The Blue Angel is awarded to companies as kind of a reward for their commitment to environmental protection. They use it to professionally promote their eco-friendly products in the market. The Blue Angel is an ecological beacon showing the consumer the way to the ecologically superior product and promotes environmentally conscious consumption.
http://www.blauer-engel.de/
Capacitors are mainly used as an energy storage component (can also be used as noise filter or voltage stabilizer ).
A self-declaration of product conformity with the directives issued by European Union for the products exported to Europe.
Australian EMI regulation
Power efficiency is the ratio of output power to input power expressed as a percentage. With better power transfer, the efficiency level will be increased.
ElectroMagnetic Compatibility Abilities of both interference and resistance of an electrical/electronic device which interferes with and to be interfered by the others around.