The distinctive orange and black box immediately caught my eye, but I was only convinced by the manufacturer information - Smart from Tomic (according to the packaging). The price isn't so bad either, just £25, so it's probably worth a try. It would be a pity if it turned out again that this product does not have a ground connection....
The distributor offers two 230 V sockets and 3 USB sockets, including one C socket. In addition, it has a light. The packaging lists the model name (SmartLED 8150) and the parameters of the sockets, although I am puzzled by the description of the USB 'charger' - only 5 V and 2.1 A. Does this also apply to this C socket? Is there no quick charge, a standard that supports higher voltages? However, let's not judge in advance. The main thing is that in big letters there is text about the manufacturer from Tomic.
We take a look inside and this is where the first crush occurs. It wasn't on the packaging, but on the product itself it says "Made in China". Just below it next to it is information about the manufacturer from Tomic. Am I clinging, or is this information somewhat in conflict? Perhaps they meant "importer"? Would a typical non-technical person, after reading the information from the packaging, understand that this is Chinese equipment, or would they think it was manufactured in Poland?
The sockets are Schuko standard, but as long as the plugs have matching earthing then there is no problem.... Exactly, grounding?
The continuity test shows no earth! Time to look inside and see what's going on there.
Deadly product - no earthing, earthing is just for show. You can't see the option of how it could have been pulled.
The diameter of the wires and the ugly solders are not encouraging either:
I can't even see a potential connection to the rest of the circuit on the ground plate from the plug:
That leaves the power supply module:
The power supply is the simplest flyback with feedback taken from the primary side (PSR - Primary Side Regulation). The whole on a single IC with integrated keying transistor - PL3378. Minimum of external components. It also supplies USB C - no chance of a higher voltage supply.
I guess the only positive aspect is that synchronous rectifier on the secondary side. I'm seeing these more and more. They replace the Schottky diode. Here we have the MT6704.
Example schematic with a similar circuit:
What's left is the lamp - it's simply the LEDs behind the rectifier bridge and current limiting resistors:
You can even see her flashing on the phone:
I also checked the power supply - you can indeed draw up to 2 A.
In summary , here we have another deadly product. Plus this USB power supply isn't of much use these days, I don't know what the USB C socket is there for, probably just for show. I probably do not even need to mention the origin of the product itself, it is a pity that the manufacturer from Tomic did not ensure that it complies with basic safety requirements. In short - made in China.
Do you also come across this type of gadget? Do you have tried-and-tested brands that you buy to avoid surprises like the one in the topic?
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The point is:
