TechwareLabs has published a review of the Glacial Power 550W Power Supply.
A quote from the article:
Glacial Power 550W Power Supply Review
Glacial Power provided us with a 550 w power supply to test and review. This power supply boasts 78% efficiency as well as some very solid voltages. Read our review to find out if Glacial Power is a name to watch for good quality power supplies.
Glacial Power 550W Power Supply Review