How to Check the Manufacturing Date of a Great Wall Julong 1250W Power Supply

Mon, 02 May 2022 00:00:00 +0000

Great Wall Julong 1250W power supplies have recently appeared in large numbers on Xianyu. The price is often around 100 to 200 RMB, so the value can be quite good. The problem is that many buyers do not know how to read the manufacturing date. The method below uses the serial number printed under the barcode.

Query by the Serial Number Under the Barcode

There is an 11-character string under the barcode, as shown in the example image.

The first two characters indicate the year:

Code	Year
20	2000
21	2001
..	..
29	2009
2A	2010
2B	2011
2C	2012
2D	2013
2E	2014
2F	2015
2G	2016
2H	2017
2I	2018
2J	2019
2K	2020

The third and fourth characters indicate the month.

Example

In the example above, the production date is May 2018.

PSU Serial Number on KnightLi Blog

How to Check the Manufacturing Date of a Great Wall Julong 1250W Power Supply

Query by the Serial Number Under the Barcode

Example