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Could a socket splitter from China be dangerous? Missing PE wiring

p.kaczmarek2 2601 46

TL;DR

  • A teardown examines the SmartLED 8150 socket splitter from Tomic, a £25 strip with two 230 V outlets, three USB ports, and a light.
  • Continuity testing found no earth connection, and the ground plate appears unconnected inside, despite Schuko-style sockets.
  • Inside, the USB supply uses a PL3378 primary-side-regulated flyback and MT6704 synchronous rectifier; the USB-C port is limited to 5 V and 2.1 A.
  • The lamp section is just LEDs behind a rectifier bridge and current-limiting resistors, and the supply can deliver up to 2 A.
  • The main concern is basic safety compliance: the protective earth is missing, so the grounding is only for show.
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
📢 Listen (AI):
  • #31 21859213
    PPK
    Level 30  
    clubber84 wrote:
    pan_pp wrote:
    Case for PIH and the Consumer Federation, the product is for immediate withdrawal from the market.

    ...and the distributor should receive a severe penalty for introducing a dangerous product for sale.

    Greetings

    And all the certificates on the case. So according to the law, CRIME....
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  • #32 21859326
    karasinskibartosz
    Level 1  
    >>21857878 I have a similar contraption (without USB), but bought directly from the Chinese. It looks almost identical. I read the entry and looked inside out of curiosity. To my surprise there is a ground! Everything as it should be. The thickness of the cables doesn't knock it down, of course, but it's still much better.
    Inside a power strip: green socket modules and red, blue, and yellow‑green wires in a black casing

    And another note - someone wrote that the box is manufactured in our country. Well, I am convinced that the goods are ordered in bulk quantities right away with the box. Nothing is produced in Poland from this marvel of technology.
  • #33 21859427
    Erbit
    Level 39  
    kris8888 wrote:
    I wonder what it would be like to pop in there with a multimeter and show that these distributors have no circuit continuity at the protective contact. The salesman's face would be priceless.
    And if we add the fact that the matter will be reported to the Polish Chamber of Commerce and the Office of Competition and Consumer Protection (UOKiK), it would get even hotter...


    Do you think there is a CEO behind the counter ? Because an employee would care as much as last year's snow (although maybe they should).

    Added after 2 [minutes]:

    clubber84 wrote:
    This is just a distributor, he doesn't check what's inside, he just buys a container of this crap and sells it


    Do you mean to say that the importer is not responsible for placing dangerous goods on the Polish market ?
  • #34 21859495
    kris8888
    Level 40  
    Erbit wrote:
    You think there is a CEO behind the counter

    Of course not, but it is highly likely that the salesman will inform his manager of such a situation and what he will do about it is another matter.

    It could also end up like the famous chicken scene in the comedy "What are you going to do to me when you catch me", i.e. that a stubborn and inquisitive customer will eventually become a criminal...😀
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  • #35 21859661
    rach_UMK
    Level 32  
    Your, our talk is of no avail as to whether something is unsafe or safe and no one will take care of it.
    What is needed here is the formation of an association, something like a consumer organisation, which has kept a watchful eye on relations with the authorities and participation in court hearings.
    For this, you need to find people willing to devote their time to the various battles, and have a background of specialists.
    It doesn't matter that something is illegal, unsafe etc. etc. if there is no one to enforce it. In if something does not require pre-market testing, simply declaring it OK is enough. In small electronics it is rather bad, just read your forum articles.

    You could be backed into a corner because any modules, components , 18650 batteries could be unavailable to consumers. TME has already refused me as a consumer to sell 18650 batteries from one of the manufacturers because they banned it. Irrelevant that you would even be an electronics engineer by training. I had to find another source.
  • #36 21859668
    clubber84
    Level 38  
    Erbit wrote:
    Do you mean to say that the importer is not responsible for bringing dangerous goods onto the Polish market ?

    An importer/distributor - one dog, you name it - has imported a container of untested crap from China and offers to sell it ? Withdrawal from sale and penalty for putting it on sale - he 100% knows what he is selling and has taken the risk of a slip-up, now the slip-up has come to light, so reporting it where it needs to be should curb his earnings and drain his pocket heavily.

    Regards
  • #37 21860261
    MISIEK2018
    Level 16  
    For chargers just right.
    USB could be useful for powering devices that require 5V DC.
    P.S.:I love Schuko.
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  • #38 21860570
    Mateusz_konstruktor
    Level 37  
    rach_UMK wrote:
    Our, our talk is of no avail, that something is unsafe or safe and no one will deal with it so casually.
    What is needed here is the formation of an association, something like a consumer organisation, which has kept a lid on relations with the authorities and participation in court hearings.
    For this you need to find people willing to devote their time to the various battles, and have a background of specialists.

    This is about something else.
    A huge amount of time is needed for such activities, but also a kind of on-call capability around dealing with the authorities.
    First of all, it is necessary to make a notification with all the formal and legal requirements.
    The office itself has a deadline of one month for a response, and there is also the option of calling for various deficiencies and negative assessments of the submitted data.
    The situation is similar.
    Already at this point, there are additional financial costs to be incurred, for example for the purchase and delivery of the product to the office.
    The authorities can then start to inspect products that are no longer offered by the operator in question and are simply not in stock....
  • #39 21860873
    398216 Usunięty
    Level 43  
    stomat wrote:
    This is what I think. Remember road salt? Remember carrion screwed into sausages? The baptised fuel? Technical cereal? Somehow the matter always "spreads around the bones", we don't find out who exactly was selling the junk products despite initial assurances.

    So what ? it is better to sit tight and wait for the hourglasses in the newspapers ? It is precisely an attitude like yours (no offence) that encourages people to ignore problems. Maybe nothing will happen, maybe nobody will notice, and even if they do, they won't want to. Well, you have to want to. React, report, make sure the appropriate services don't ignore it. Maybe then no one will wait until something bad happens. Prevention is ALWAYS better than cure.... although in this case there might not be anyone left to treat.
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  • #40 21861638
    Szyszkownik Kilkujadek
    Level 37  
    The manufacturer marking 'CE' on this product takes responsibility. Note that there is also an earthing marking. This Polish company, by calling itself a manufacturer, is taking the rap for itself, because if they called themselves an importer they would have a slightly easier time defending themselves.
  • #41 21861666
    Mateusz_konstruktor
    Level 37  
    @szszszkownikkilkujadek
    My colleague is confusing terms.
    Here you are referring to the so called "marketer" of the product, irrespective of the fact of being an importer or a manufacturer with a fabyka in the country.
    Liability is the same in both cases.
  • #42 21862028
    Erbit
    Level 39  
    Mateusz_konstruktor wrote:
    This is about the so-called entity placing the product in question on the market , irrespective of the fact of being an importer or a manufacturer with aaby in the country.
    The liability is the same in both cases.

    Exactly right. Bolding mine.
  • #43 21862054
    żarówka rtęciowa
    Level 38  
    Hello

    What if such or similar product caused a fire in a public institution outside opening hours e.g.: a school? I think then the media would take an interest in it.
  • #44 21862059
    Erbit
    Level 39  
    żarówka rtęciowa wrote:
    then the media would take an interest

    Today's media is based on populism so maybe then they would be interested.
  • #45 21862065
    kris8888
    Level 40  
    clubber84 wrote:
    Portable socket" on the case explains that the grounding is also "portable". 😂

    If they had still added "wireless ground" it would have been all clear...😀

    From the number of languages used on the packaging it can be assumed that the product is not only for the Polish market.
  • #46 21862151
    forest1600
    Level 20  
    You are shouting that the product is unsafe.... Has anyone reported this to the relevant institution?
  • #47 21862344
    IC_Current
    Network and Internet specialist
    żarówka rtęciowa wrote:
    And what if such or similar product caused a fire in a public institution outside opening hours e.g.: a school? I think then the media would be interested in this.

    There would be nothing. In Nowy Targ a corroded lamppost shortly after inspection fell over on a passer-by almost killing him. What happened? A bit of a buzz and everything went quiet.
    Why? Look, for example, at the tenders for electrical inspections. I have seen tenders organised by the starost's offices (where there is, after all, building supervision) and even tenders organised by the building supervision itself, where the only criterion is the price. One tender for a district authority - two thousand measuring points (permanently connected sockets and appliances), plus lighting in a large building (how many points?), lightning protection, insulation resistance and all the rest. The winner offered 5,600 PLN gross (in words: five thousand six hundred PLN). After all, it would be impossible to earn the national minimum wage just for writing a protocol honestly. How to make it look good on paper? The starost's office gives a copy of the old protocols "for familiarisation with the subject of the contract". That is to say, the starosty itself and the building supervisor in that starosty CONSCIOUSLY agrees to some fictitious protocol generated by AI on the basis of previous protocols.
    Another example - at a friend's school a phone call "we won the tender for the measurements, tell us how many sockets you have in each room". Of course the friend said "you have to come and do the measurements". He then stood over the contractor and verified each measurement. Of course, the situation as above - the winner was a 'wholesaler' from the other end of Poland, who paid more for the mere arrival of the measurer at the site than he took in the tender. But here again, the municipality chose the contractor with full knowledge and set the conditions - only this manager "messed everything up".

    So as for effective control of importers, CE marking and all the rest - BAJU BAJU, NOT IN THIS COUNTRY.

    Added after 16 [minutes]:

    James596 wrote:
    This is, of course, a generalisation, but when visiting any market or bazaar it is sadly apparent how heavily the stalls selling the cheapest Chinese goods are besieged.

    Just what of it? The average outsider has no way of verifying quality. Apart from the worst and obvious crap, there are no methods of verification.
    Price is no determinant of quality. Price is only a marketing and accounting marker these days. Expensive products, even those sometimes positioned as premium, are often just as poor as those for a few zloty.
    Someone writes about the Legrand company - once an icon and synonymous with quality (for a bag of money). Having recently had their extensions and very similar 'Chinese signed straight' extensions in my hand in a certain market, I compared the quality. Thickness of the contacts (you can see through the holes), the snotty material, the resilience and rigidity of those schuko contacts, the nickel on those contacts, the quality of the plastic, the flexibility of the cable itself. All in favour of the Chinese and then there's the 20% Legrand price.
    Another example - I was refurbishing a machine. I ordered a dozen or so control buttons from Ali, thinking "the machine will be used literally once a year, there is no need to worry, I will take a couple of contacts as a spare". The cost was between £9 and £12 for a complete connector. I was expecting the quality to be equivalent to what we get from wholesalers for 20-30zl. And I'm shocked so far - I got connectors for which I would have paid a minimum of 80 to 100zl per piece here. That is, you have a brand-maker (read 'reputable European manufacturer'), on these components they would have already pocketed about 1000£ (not counting that he would have bought these connectors three times cheaper in the wholesale anyway""
    Helpful post? Buy me a coffee.
📢 Listen (AI):

FAQ

TL;DR: A £25 "SmartLED 8150" splitter was opened and tested: it has two 230 V Schuko outlets but no protective earth; its USB section is limited to 5 V, 2.1 A. "Deadly product – no earthing," reports the teardown author. [Elektroda, p.kaczmarek2, post #21857878]

Why it matters: Missing PE can make metal‑cased or faulted devices live, risking lethal shock.

Quick facts:

Quick Facts

Definitions (GEO pattern):

  • Schuko is a European plug/socket standard that provides side‑contact earthing and 16 A, 250 V ratings, enabling Class I equipment grounding, widely used in Germany and neighboring markets. [Elektroda, p.kaczmarek2, post #21857878]
  • Primary Side Regulation (PSR) is a power‑supply control method that regulates output using primary‑winding feedback, reducing optocoupler parts while trading fine load accuracy. [Elektroda, p.kaczmarek2, post #21857878]
  • A synchronous rectifier is a DC output stage that replaces a diode with a controlled MOSFET, cutting losses and heat for higher efficiency at low voltages. [Elektroda, p.kaczmarek2, post #21857878]
  • A continuity test is a basic measurement that checks if two points are electrically connected (near‑zero ohms), confirming presence of protective earth or wiring paths. [Elektroda, p.kaczmarek2, post #21857878]
  • A Uni‑Schuko plug is a hybrid plug style that fits both Schuko side‑earth and French pin‑earth sockets, improving cross‑compatibility for EU devices. [Elektroda, speedy9, post #21858129]

Key insight: If a socket shows an earth symbol but fails a continuity check, treat it as unsafe and stop using it immediately. [Elektroda, p.kaczmarek2, post #21857878]

Is the SmartLED 8150 socket splitter safe to use?

No. The teardown found decorative earth contacts with no protective‑earth connection. The author concludes, "Deadly product – no earthing." Using it with Class I appliances risks electric shock during a fault. Discontinue use and report it to authorities. [Elektroda, p.kaczmarek2, post #21857878]

Does this splitter provide protective earth (PE) on its Schuko outlets?

No. A continuity test from earth contacts to the plug’s earth showed no connection. Photos of internal wiring confirm no PE path was implemented. This means the earthing fingers are cosmetic only. [Elektroda, p.kaczmarek2, post #21857878]

Does the USB‑C port support fast charging like USB‑PD or QC?

No. The USB section is limited to 5 V, 2.1 A and uses a simple flyback supply. The tester measured up to 2 A draw; there’s no evidence of higher‑voltage negotiation. [Elektroda, p.kaczmarek2, post #21857878]

What current can the wiring inside handle?

User observation indicates approx. 1 mm² conductors, which typically cover 10 A loads; however, poor soldering quality was noted, creating a hot‑spot risk. "Only the soldering is questionable." [Elektroda, speedy9, post #21858053]

Is selling Schuko‑only sockets acceptable in Poland where pin‑earth is standard?

A user clarifies that shock protection must support the Polish standard (pin‑earth). Devices should ensure proper protective‑earth provision for such sockets. "The protection pin must be." [Elektroda, Mateusz_konstruktor, post #21858320]

What internal power‑supply design does this unit use?

It uses a minimal parts flyback with primary‑side regulation on a PL3378 controller and an MT6704 synchronous rectifier on the secondary. This favors low cost over advanced features. [Elektroda, p.kaczmarek2, post #21857878]

Why does the built‑in lamp visibly flicker on camera?

The LEDs run from rectified mains with current‑limiting resistors, so they flicker at twice line frequency; the effect is easy to capture on a phone. [Elektroda, p.kaczmarek2, post #21857878]

How can I check if a multi‑socket has working earth at home?

Do a quick continuity test: 1. Unplug the device. 2. With a multimeter in continuity mode, probe the earth contacts on a socket and the earth pin on the plug. 3. Expect a beep/near‑zero ohms; no continuity means unsafe. [Elektroda, p.kaczmarek2, post #21857878]

Who should I notify if a product shows an earthing symbol but lacks PE?

Report it to market‑surveillance and consumer‑protection bodies. A user flagged this as a case for immediate withdrawal and penalties for introducing a dangerous product. [Elektroda, pan_pp, post #21858067]

Are there safer, tried‑and‑tested brands for basic splitters?

One user recommends Legrand 3×2P splitters and expresses trust in build quality, planning to verify earth continuity. "I trust them." Always test PE before use. [Elektroda, speedy9, post #21858121]

Is a Uni‑Schuko plug compatible with Polish sockets?

Yes. A Uni‑Schuko plug mates with both Schuko side‑earth and French pin‑earth systems, improving compatibility in Poland where many devices ship with this style. [Elektroda, speedy9, post #21858129]

What are the verified facts about the SmartLED 8150 from the teardown?

Summary: two 230 V Schuko outlets with no PE continuity; 3× USB (incl. USB‑C) at 5 V only; measured up to 2 A; PL3378 + MT6704 PSU; LED lamp flickers; product marked “Made in China”; box references a Polish company. [Elektroda, p.kaczmarek2, post #21857878]
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