I have bought a number of things from various AliExpress stores in the past, never any problem, until now. If you are considering buying this power supply "DIY KITS CC CV DC 0-35V 0-5A Adjustable Constant voltage constant current power supply regulated", there is something VERY IMPORTANT that you need to know. Read on.
It looks nice, all the board parts appear to be included, and the price is right. The lengthy documentation is an awful mess with some parts that are simply unintelligible. But I figured what the heck, I would fight my way through it, and ordered it. It arrived a couple of days ago no problem, but something didn't look right. I opened it up and sure enough it was a bare pcb; no components at all! What's up???
I sent the seller a message and the response was that I had ordered only the pcb. Who even knew a bare pcb was an option? I shot back a comment that the documentation and pictures clearly showed a board with all components. To date I have had no response, though the message has been read.
I re-opened the listing on the Ali site and did some exploring. Kinda disguised I finally found out what was going on. Here is a snip of the basic listing:
Notice the blue circle and arrow. Where it says "Color: PCB" is a small pic of the pcb only, showing it is indeed green in color. But if you click on the other small pictures to the right there are 2 more options. The farthest to the right is this one:
This time it says "Color: Full set" which is the full meal deal kit, even though the main listing picture far left is identical to the first screen. And note the new price 3 times higher! (The middle option is the full kit less two 2N3055 transistors, and is a couple of bucks less. Why they would even offer this option is a mystery.) I re-read the crappy documentation as best I could, and found no mention of 3 different kit options to choose from. You kind of have to stumble onto it.
Some would call this way of doing business unscupulous, or at the very least misleading. Why they call it "Color" instead of something more meaningful like "Kit Options" or "Pricing" is not clear. Maybe color is what came up in translating, who knows. It is quite frustrating though to order what you think you are ordering, then find out it's not that at all. Maybe it’s intentional deception? And the price of $7.59 plus shipping of $5.38 for a lousy pcb that likely cost less than a buck, is ludicrous. Perhaps this price is set high just so it looks like it could be the full kit? I call it shady business, plain and simple.
Buyer beware I guess! I am posting this sordid affair only as a warning to others. Sometimes what you see is NOT what you get! It's not that the cost involved will break the bank or anything, it's just the principle of this type of shady business practice that gets my goat. You will see the store number in the upper left corner of the snip above, and note their lousy positivity rating of 93%. I can surely understand why because I am betting I am not the only one who has been stung. I would not recommend this store to anyone, and AliExpress as a whole just went way down on my scorecard. A nice thing about dealing with Ebay by comparison is you don’t need to worry much about this kind of crap. Shady sellers are not tolerated.
If I ever hear anything back from them, or if they were to offer to supply the parts kit separately for a price, I will follow this up, but I'm not holding my breath. Likely the pcb will just wind up in the dumpster. The axiom below is proven once again: