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Date: December 8th, 2009, 2009
Article by: Joe Anderson (Hardware Reviewer)
Edited By: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Kingwin
<--CLICK FOR PRICES ON A POWER SUPPLY IN AMERICA
<--CLICK FOR PRICES ON A POWER SUPPLY IN CANADA

 

PRODUCT SPECIFICATIONS AND FEATURES


 

  • Model: LZ-850

  • 80 Plus Bronze certified

  • Special patented cable management system

  • Crystal cube modular connectors

  • LED connector indicators ensure correct installation

  • 3 - Way LED switch: White LED / Blue LED / Off

  • Universal modular connector concept

  • More than 2,000 times On/Off test

  • Full range design from 100V~250V (Active PFC)

  • More than 87 % efficiency (At 230V, the average data in 20%, 50%, and 100% load)

  • Over power/under power/over voltage/short circuit protections

  • Stable +12V current

  • Comply with Intel ATX/BTX standard

  • Two PCI express connectors 6 pin

  • Two PCI express connectors 8 pin (6 +2 Pin)

  • Eight SATA connectors

  • Six 12V rails

  • 140 mm blue & white switch LED fan

  • Support Intel Core i7 / Core 2 Quad / Core 2 Duo &
    AMD Phenom X4 / Phenom X3 / Athlon 64 X 2 High Performance CPU

  • Support High Performance Nvidia SLI GPU

  • Compliance with ATX 12V v2.2, EPS 12V v2.91, and SSI EPS 12V v2.92 Specification

  • Output gold-coated connector

  • Output over / under voltage protection

  • Black coating finish

  • Intelligent  auto fan-speed control

  • Compatible with Crossfire/SLI

  • 3 Year Warranty



Maximum power:

850 Watts

Version:

SSI EPS 12V v2.92

CPU:

Intel Core i7/Core 2 Quad/Core 2 Duo &
AMD Phenom X4/Phenom X3/Athlon 64 X2

Efficiency:

Up to 87% (At 230V, the average data)

AC Input:

Full range 115V-230V (Active PFC)

Frequency range: 

50/60 Hz

Temperature:

0 C ~ 40 C

Humidity:

10%-90%

Safety:

UL/CE/TUV/CB/FCC/C-Trick/BSMI

Housing color:

Black

Input waveform:

Sine wave, modified sine wave or square wave

Input maximum current:

115 Vac ~ 240 Vac : 15A

Overpower protection:

105% ~ 150%

Over voltage protection:

+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.

 

 


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