Mosquito Zapper with absurd manual - test, teardown & improvements

[@nonci6]

The hungarian translation in english means LED mosquito exterminator.

[@mrkitty777]

Hawk 🤣

[@Krisztian5HUN]

i'll be back!! //dudum dumdudum.... dudum dumdudum... 🤖

[@Krisztian5HUN]

Van bojlerem is ha kell... eladó.... 🤠

A magyarok mindenhol ott vannak. :)

[@Krisztian5HUN]

Nyilván, viszont én vagyok az egyetlen olyan magyar nézője ennek a csatornának, aki a Retroshockon kívül nincs feliratkozva más magyar csatornára...

[@mikeoliver3254]

Nice improvements. I really like the videos where you fix a bad design while explaining what you are going to do.

[@amicklich6729]

I agree. One of my favorite kind of electronic videos. Understand the schematic, find design flaws and make the changes!

[@SeiRruf]

What an amazing video! I not only love your voice, but also how well and quick you're able to explain things. The diagrams and the little bit with explained improvements is awesome. Thank you! I am looking forward to all your future videos!

[@RODALCO2007]

Great redesign of that zapper. Love your diagrams.

[@Sagiri_Izumi]

I thought you were not active at all,

[@SonicHacki]

I really adore your diagram or sketches, especially those mosquitoes! they are your masterpieces honestly :D

[@PeppercornVR]

It makes an example of the first mosquito and the rest run away screaming 😂

[@mrkitty777]

Blaze the Fox 😥😪 poor little mosquito.

[@neyoid]

@@mrkitty777 All mosquitoes can go to hell

[@zx8401ztv]

I could not help laughing at your cartoon picture of the mosquitos, the eyes just got me lol. They looked petrified, i do enjoy your comedy pictures :-D :-D. Are you sure you are not chinese, you are good at making circuits simpler :)

[@DiodeGoneWild]

Sometimes simpler is better :). Some designers just mindlessly keep adding more and more components until it works :D. But it may be better to use a circular wheel instead of stacking multiple square wheels...

[@johncoops6897]

At 1:23 - the mosquito's eyes look exactly like penis!

[@Your_username_]

DiodeGoneWild haha that was very good analogy!

[@maticz3923]

Simple but not allways cheaper (:

[@veganator2768]

I started becoming interested in electronics with Electroboom/afrotechmods, but i actually learn something with your channel. 10/10. keep making great content

[@pdrg]

I like the deeper analysis at the end and design improvements

[@tomkroebel]

This device does not only have the "CE" (Chinese Export) label but also the german "GS" sign (means Proof of Security) and "TÜV" sign (Technical Surveillance Organization) which means that it was tested by engineers and should be really safe under all conditions ...

[@Erebus-PCFX]

The "Twilight sensor" senses if the mosquitoes are watching a bad movie...

[@oldmanhuppiedos]

A wonderful conclusion: "a manual that nobody reads" Can laugh about it.

[@rtyzxc]

This is the first time I see a fuse in an electric appliance reviewed by you.

[@zwz.zdenek]

To be fair, brand name wall adapters use fusible resistors.

[@CheapCheerful]

I loved the drawing :) Great work, sending good vibes from Australia to our friends in Czech Republic!

[@EpicLPer]

I mainly subscribed for the voice

[@viveksoley]

EpicLPer me too. It's like listening to good music...

[@SianaGearz]

Oh no, he found us. I thought we were free of him here.

[@orange2335]

me too😃

[@hullinstruments]

I've seen a lot of products that have both real UV LEDs and also bright blue LEDs to let humans know not to look at it and to let people know that it is on. Of course some of them cheat and don't have any UV at all but most of the ones I've seen have both. And a lot of the fancy new UVC leds are double dye.... and have both in the same package as a safety feature. I've been ordering and experimenting with a lot of uvcc LEDs over the last few years since the technology is becoming more prevalent and maturing. It's really cool and exciting and they just keep getting more and more powerful.

[@felixcat4346]

What makes these videos great is he is unusually articulate for an electrical engineer. Most have some disability in language and speech.

[@SianaGearz]

Well that's offensive!

[@johncoops6897]

Usually, electrical engineers also have some disability in personality and sense of humour.

[@johncoops6897]

James Collier - as proof, I refer to the 2 engineers who had replied prior to me :-)

[@fernandogamdev]

It's awesome how you reverse and fix the circuits!

[@johanbotha9889]

I think you are a genius!!! Your reverse engineering and explanation are awesome. NB: Good sense of humor.. Love your videos.!!!

[@SirensAndAlarmsOfNorthernIL]

When he mentioned the LEDs flicker at 50Hz, I don’t think it is because one half cycle is going into them as wouldn’t they still flicker at 50Hz if the full AC cycle went into them as they’re directional?

[@vidzoftibi1616]

3:40 !! This is an LED Szúnyogirtó! I'm hungarian. It means LED mosquito killer.

[@zuluflight5467]

wow-my favorite electronic channel-almost leaves me speechless

[@coondogtheman]

1300 volts is a bit weak for a bug zapper like this. the more powerful ones like the hand held ones has 2300 volts some 2750 volts and I have a large hand held convertible zapper that plugs in which has 3700 volts and bugs explode on contact when they touch the grid. it will give you a hell of a shock.

[@pansloup5365]

You have beautiful cat.

[@JoeBlow-zr2ru]

I have been given UV-type (tube type) "mosquito zappers" in the past. Unlike many other nocturnal insects, such as moths, there were never any signs that mosquitos were at all interested in UV light. But! Some are definitely attracted to the IR emitters on my security cameras at night. Studies have shown mosquitos have incredibly sensistive heat sensing ability (capable of detecting a few hundredths of a degree change in temperature per second). Presumably the IR emitters can appear to the mosquitos as a false body heat signal.

[@DavidMG99]

The product owners should pay you for the modification ideas.

[@Turborider]

1A fuse! That's 230W... (at 230V) 200mA or less would be more appropriate

[@anindyamitra5091]

Turborider, 1 A fuse is given for the case when the 430k bleeder resistor or the capacitors shorts out. 200mA fuse would blow up immediately because the initial inrush current is huge due to the capacitors in the circuit.

[@Turborider]

You could just use a slow reacting fuse. I doubt that the circuit needs more than 200W to charge up the few small caps.

[@DiodeGoneWild]

That's because of the inrush of the capacitors. Using a slow blow fuse with a lower rating would be better, but I think that slow fuses are more expensive and that's the problem :).

[@anindyamitra5091]

DiodeGoneWild, exactly what I wanted to say.

[@Turborider]

Slow reacting fuses are actually cheaper.

[@andiyladdie3188]

Nice modification! man, the box descriptions are mind blowing!

[@viveksoley]

A very in-depth analysis of the machine and the manual.

[@robotics_and_stuff]

I like these videos where you reverse engineer the circuit. Thank you for the explanation!

[@tonogtube]

Ty si normálne z toho spravil funkčné zariadenie :D Samozrejme lajk ako vždy. Doma máme pôvodnú verziu tohoto zázraku ešte bez prepínača a "fotobunky".

[@miloslavjelinek4168]

A funguje to? Chytlo to nejakyho moskyta? ;)

[@tonogtube]

Niečo sa chytilo, ale či to bol komár ? :D Podľa mňa sú tie mriežky ďaleko od seba. i66.tinypic.com/a2yad.jpg

[@miloslavjelinek4168]

Dik. Mozna by to chtelo vetsi nasobic, pak z toho muzou slehat blesky pul metru :)

[@Madilsharief]

I don't know how I found your channel, probably your doggy charger video, but you are doing gr8 job.

[@ACOnetwork]

I see LDE1 to LDE4 instead LED1 to LED4, or am I wrong?

[@skyem5250]

Why did the mosquito on the package only have 4 legs?

[@vibraloop]

the hungarian translation is "LED mosquito-killer" sort of

[@BrazzaB1]

I think the flickering LEDs are actually a design feature, to attract the mosquitoes, so smoothing them is making it less useful !

[@DiodeGoneWild]

Are mosquitoes attracted more to a flickering light? I don't know. Maybe they just save on capacitors...

[@SianaGearz]

What if mosquitoes are most attracted to NPN transistors and you just took it out?

[@DiodeGoneWild]

You're wrong :D. NPN transistors repel mosquitoes because the arrow points to the outside. PNP transistors attract them, because the arrow points to the inside :).

[@SianaGearz]

But arrows indicate conventional current - physical current is the opposite!

[@teslakovalaborator]

Co kdybys zkusil udělat pořádnej lapač nebo oprášit nějakou starší komstrukci z Tvého webu ?

[@Krisztian5HUN]

The hungarian part: "led mosquito killer"

[@zolatanaffa87]

Nice improvements! Why wasting power, even we're talking about mW?

[@DiodeGoneWild]

Yes, the power is very low, but why not make it draw less while also using less components? :).

[@zolatanaffa87]

DiodeGoneWild i agree!

[@DXPAlien]

THIS IS MY MAN I LOVE YOU DUDE Xd is that supposed to attract mosquitoes or repel them? If they get repelled then how they get inside ? 😂😂😂😂 Dude I love your videos ...I've been your fan for over a year 😍

[@saadrad9156]

I really appreciate your work I'm am a power electronic ingeneer and I find your method very efficient for practice:)

[@josepcarles2839]

Taking in account that the infrared light attracts mosquitos, not the normal LED lightning... Is the device working for the expected purpose??

[@wasserman63]

glad to see u are back

[@Voldees]

But is it still able to kill the mosquitos after you made it safer?

[@fouzaialaa7962]

can you make a video about capacitive droppers ?? its mysterious ....also can you explain the math behind it ?? and maximum power i can draw threw a capacitive dropper !!!

[@Basement-Science]

You just need to learn about the impedance of capacitors in AC circuits. At a fixed frequency (50Hz) the capacitor just acts like a current limiting resistor except that it does not dissipate any power as heat.

[@Clancydaenlightened]

Tbh it surprised me to find out he is Czech iirc, I thought his accent was Indian when I first heard it😂😂

[@syamsularifin5584]

Nice video of that Drawing a UV LED Mosquito Zapper Circuit diagram.

[@anthonyvolkman2338]

How did you make that bar strip wattage sensor??

[@UBsLab]

Does it actually zap any mosquitoes?

[@stipeercegovic8333]

I did this modification to my Lidl - Mosquito zapper today .. and works ..as it have to do :)

[@null-xv3eq]

Are you from sweden?

[@douro20]

Do LEDs really work well for this purpose?

[@tukangunduh]

Plzz when writing add board and skematic together

[@kemi242]

3:38 It says "LED Mosquito killer" in Hungarian.

[@DryLog420]

I especially like how the LEDs are labeled "LDE"

[@Purple431]

Maybe light diode emissions? Lol

[@AThreeDogNight]

That's much better, a great design again. Thanks for all of your Vid's.

[@Sco1t19]

My mum had one of these but it did not last long before the leds burnt out

[@hadireg]

great schematic breakdown and redesign! I wish I could also encourage with money on top of the thumbs ups!

[@maxcompress9732]

Amazing circuit improvements.

[@richardvanderveen1300]

I really like looking and listening to your videos :o) Keep up the good work!!!

[@a000ab]

DiodeGoneWild One suggestion to make it even more power efficient, for the mode that the UV LEDs are on; Currently the four UV LEDs are in series. What if we place them in 2 parallel branches, 2 LEDs in each branch. The 2 branches should have opposite polarity so that in one half cycle the LEDs of one branch are on and the LEDs of the other branch are off, and the opposite happening in the other half cycle. The Zener and 1N4007 should also be omitted. I guess this way the voltage drop capacitor (2200nF) will help more in decreasing power dissipation (For the mode that the UV LEDs are on).

[@zwz.zdenek]

That would take some load off the Zener, but it would also make the efficiency of the capacitive dropper worse, so the only good way is still a full bridge rectifier.

[@a000ab]

@@zwz.zdenek How does it worsen the efficiency of the capacitive dropper? With my suggestion, for when the NPN transistor (and hence the UV diodes) is off, no current passes through the capacitive dropper at all. Just when the NPN transistor turns on current passes through it.

[@fouzaialaa7962]

contact the manufacturer if that device is still in production you could get a reward for saving cost i know alot of ppl who do that

[@Krisztian5HUN]

Even more SALT!!!

[@Kostanj42]

awesome vid! btw i like how you draw that blob of solder :)

[@waelsadek81]

The new modification still shorts the LEDs. How it saves power ?

[@DiodeGoneWild]

Originally it didn't short the LEDs. Now it does. A capacitive dropper supplies a constant current, so the higher is the voltage drop of the load, the more real power it draws. If the load is shorted, its voltage drop is zero. Then the capacitor only draws a capacitive power, not a real power. Some power is still dissipated in the discharging resistors and in the inrush resistor, but the total power is less, because the output of the dropper has nearly zero voltage (just the voltage drop of the transistor, lets say 1V). Simply said, by shorting the LEDs out, the real part of the power decreases. Just the capacitive power remains, but it's not shown by the wattmeter and you don't pay for it.

[@waelsadek81]

DiodeGoneWild Very well explained. Many thanks for your reply and the instructive videos.

[@gamergurl7828]

what will happen if you stick in finger?

[@SianaGearz]

They made the grid thin enough to make it impossible to stick in your finger. If you do manage to stick in your finger, you will not be very pleased at all; unless you grounded yourself in an unfortunate way, in which case you're likely to die.

[@hlschanneltube]

Sir,how do you build your multimeter as wattage meter,can me ask for schematic?

[@felixcat4346]

I've ask him before but there was no reply. He doesn't repond much to responses.

[@Basement-Science]

Have a look at his website. The schematic is there.

[@DiodeGoneWild]

It's this wattmeter: danyk.cz/wmetr_en.html Basically a power to voltage converter that allows you to display the measured power using a voltmeter. I've added a second, 10x more sensitive range to it by adding a 3.6 ohm resistor in series with the 0.4ohm one. That's it :).

[@hlschanneltube]

Thank you so much

[@joczo97]

In hungarian it's mosquito killer :D

[@groxi16]

az az szunyog irtó jó kis lidli-s :D

[@sprity7777]

LIDL szúnyogírtóóóó :D

[@BalintNandori]

Szeretek enni

[@synx7874]

Saw this product few weeks ago. Same description on the product. Tbh, Lidl is a garbage supermarket

[@peterc07]

I understeand Hungarian it says in ussual " Led szunyogirtó " wich means in english " Led Mosquito reppelent " I speak hungarian . Because im In Slovakia and near Hungary .

[@loganmacgyver2625]

the hungarian description is "LED mosquito killer"

[@jonny11bonk]

LIDL správna voľba! :)

[@Cheese_1337]

That mosquito drawing hahaha save them! archive it

[@vishftw]

"no cats were harmed during this video or during any other video."

[@berkeczgergo]

I'm Hungaryan, and the description says "mosquito killer"

[@DiodeGoneWild]

Thanks :). So the hungarian description is right...

[@hukkabukka]

Please provide your education degrees, plz sir

[@stefanitha]

I never got mosquitoes out of the tray for days of continuous usage! Not working! I lured the mosquitoes better!

[@1marcelfilms]

The best improvement would be to just remove the switch and sensor and have more leds in it.

[@uK8cvPAq]

Would the PNP go bang with that mod?

[@DiodeGoneWild]

It didn't yet and I believe it shouldn't even in the future. The average current through the transistor when it's on (LEDs off) is only about 8mA and the voltage when it's off (LEDs on) is limited by the zener and the LEDs.

[@unrealproduction]

Now this chinese company will watch this video and improve their circuit. You should charge them for it 😂

[@bigjoeangel]

Once they've been zapped, they get the message.

[@zsoltszaszi7163]

The hungarian description says led mosquito repellent

[@davey2k12]

I got one in England it actually works and they used audio capacitors lol I bet that capacitor across the LEDs causes the flicker somehow and that resistor producing heat attracts em as well

[@ivanfilip5888]

Ty jsi čech?

[@balukombat4854]

Im hungarian, and it means " LED mosquito killer"

[@vilim6304]

Honestly to that original they hunted only flies and not mosquitoes, and now I will see if the love and the mosquitoes

[@tomaskner9537]

Are you from Czech republic ?

[@DiodeGoneWild]

Yes :)

[@Electronic_For_You]

1:18 This make me happy Thanks 😂

[@fp274]

i played with this found out UV leds attract moth etc and blue leds mosquitos so i now use 2 UV and 2 BLUE LEDS now it attracts all bugs

[@richardnanis]

Its always a pleasure to watch your explanations and schematics :-) Its redicolous how they copy the marketing phrases of products without thinking :-) They seem to copy the chinese marketing policy to europe! OMG! One suggestion for product reviews: what about solar panels and MPP-Tracker for solar panels (max power point)? I think its an interesting technology and i bought a few solar panels recently to test them. Variying from 0.5W up to 50W Peak power. In fact they mostly reach 70% in best sunlight conditions. Some chinese cheap ones only reach 30 - 50% but they are getting cheaper and cheaper. you get 1W/peak for less than 1 Eur nowadays :-)

[@prakashchandrabehera6437]

Can you draw a circuit diagram for me

[@jonjohnson1259]

Great video explanation your videos are always good. Even I can understand them and im always confused! Why do the Chinese always use capacitive droppers its like an obsession to them.

[@Kitsaplorax]

It's cheap and dangerous. What more can you ask for? Does this make electronic noise? Should it have a class Y capacitor??

[@teslakovalaborator]

Yay, new video came !

[@TheRealDrWho]

I have exactly the same, but for the moment nothing is attracted to it😢

[@moparboyz920]

Lol he picking them apart hard af in the beginning

[@alissonneres5067]

How many languages do you speak??

[@tudomerda]

your fire extinguisher is a waste of good beer.

[@karlinguk]

I have a literal thinking mind. Add to that a veracious nature, and I often bug people for me wanting no ambiguity and the precise truth. That's why I liked this person's analysis of the products description as written on its box. Is it this? Or is it that? Lol This is a smart, wise not easily fooled man. He would make a great lawyer or judge... Scrutinising each and every detail to get a full and accurate picture of how and why something works. Truth is, MOST people don't dig that deep to find the truth... So they would never have spotted the contradictions he pointed out.

[@steveb936]

These crap things are back in Lidl, I just got one, the twilight sensor does not work, both switch positions its on, fooking rubbish

[@cameronbuckwilliams6511]

Po několika týdnech začaly ledky svítit slaběji.