+5V output is between 5.74V to 7.0V
+12V output is between 13.4V to 15.6V
+3.3V output is between 3.76V to 4.3V
Unit dimension:
6 1/2”(180 mm) D x 5 7/8”(150 mm) W x 3 3/8”(86 mm)H
Unit weight:
6 lbs (2.7kg) / unit
MTBF:
100,000 hours under the following conditions full-rated load
Switches:
ATX Logic power rocker switch
Fan size:
One 140 mm x 140 mm x 25 mm bottom blue & white switch led fan
The Kingwin Lazer series is clearly aimed at the high-end PC enthusiast and marketed as a premium product. As such, the LZ-850 should, and does, have some premium features and specs. As you can see, Kingwin doesn't disappoint. Let's take a moment to go over one of the high points that make this a premium PSU.
First of all, let's discuss the 80 PLUS certification. To quote from the website (see it HERE ,) “80 Plus is an innovative, electric utility-funded incentive program to integrate more energy-efficient power supplies into desktop computers and servers. Participating utilities and energy efficiency organizations across North America have contributed over $5 million of incentives to help the computer industry transition to 80 PLUS certified power supplies.”
Fraction of Rated Load
20%
50%
100%
80 PLUS
80%
80%
80%
80 PLUS Bronze
82%
85%
82%
80 PLUS Silver
85%
88%
85%
80 PLUS Gold
87%
90%
87%
As you can see from the above table, to achieve the 80Plus certification, the PSU must demonstrate 80% or better efficiency at 20%, 50% and 80% of the rated capacity. In 2008 Bronze, Silver and Gold categories were added and the corresponding efficiency benchmarks are listed above. 80Plus certified power supplies, when compared to less efficient PSUs, will generally be quieter while producing less heat, have higher quality components and save you a little money on your electric bill. However, the money saved is unlikely to offset the higher cost of an 80Plus unit, as the savings calculator on the 80Plus website shows. Nevertheless, for me, the lower temps, quieter operation and quality components found in 80Plus power supplies make up for the extra cost, in most cases. This Kingwin offering is rated at 80Plus Bronze.
