Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits are equal to that of the Kingwin LZP-1000 1000W PSU, we can test it to the maximum.
Let's start by taking a look at the voltages to see how well this unit did during testing. Starting with the 12V rail, we see 2% regulation from with a total drop of .17V from start to finish. The 5V rail also stayed within 2% voltage regulation and displayed a total drop of .04V. Moving towards the 3.3V rail, we see that regulation was again within 2% with a total voltage drop of .04V.
DC output quality was excellent from start to finish. Starting out, we were barely able to see a ripple on the scope during Test 1 where we measured noise at a low 9mV peak to peak. This steadily increased as the loads also increased. By the time we had reached around 50% load, the unit ripple had crept up to 20mV. Under full load, we saw that the noise on the 12V rail had crept up to 32mV.
The Kingwin Lazer Platinum LZP-1000 is rated for 80Plus Platinum efficiency. This means that the power supply must perform at 90%/92%/89% efficiency at 20%/50%/100% loads respectively. As you can see, the Kingwin LZP-1000 1000W had no trouble achieving this while on our test bench.
Kingwin has produced another spectacular unit with the LZP-1000.
The unit has great voltage regulation, amazing DC output quality and platinum efficiency just as advertised. The ability for the unit to be nearly completely passive is a huge bonus, especially for those seeking silence.
Topping things off, the LZP-1000 represents an incredible value for a 1000W unit with Platinum efficiency, coming in at least $50 cheaper than the competition. Those seeking a 1000W unit would be crazy to not consider the LZP-1000W.
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- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [The Packaging]
- Page 3 [Inside the Box]
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