John Adams | Hot Wires: Plug and play electronics set

John Adams | Hot Wires: Plug and play electronics set with 100 experiments! | Science and STEM Toys | Ages 8+

John Adams | Hot Wires: Plug and play electronics set with 100 experiments! | Science and STEM Toys | Ages 8+


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Hot Wires is safe, fun and supports National Curriculum Learning and STEM principles.

Discover 100 action-packed and exciting experiments, including building a real flying disk, a lie detector test, an alarm and lots more!

The colourful, easy to use instruction booklet guides you into the wonderful world of electronics.



Model: 3412
Material: Plastic
Colour: Multicolor
Batteries Required: Yes
Batteries Included: No
Age: 7 – 12 years
Assembly: No
Material: Plastic

15 Responses

  1. Anonymous says:

     United Kingdom

    This set is great. Bought for 7-year old, we’ve done a few experiments as per the book and he also likes going free-style which has varying degrees of success, but all good for learning. He’s done some ‘electricity’ stuff at school so knew it was something he was interested in. A purchase which will actually be used more than once! Recommend.

  2. RandyKeysor says:

     United Kingdom

    I purchased this for a birthday present for my grandson and he is really enjoying experimenting with the various tasks. Good quality product but the kit was missing the bulb holder and instead had two microphones, they look very similar. I just need to work out how to get a replacement part to complete the set.

    4.0 out of 5 stars Missing pa

  3. Anonymous says:

     United Kingdom

    We gave this electronic kit to our 6 1/2 years old grandson and he did the 1st experiment (light with switch) with a bit of explanation and guidance. Then the spinner with motor and flying disk built virtually on his own and later an FM Radio Came into the room with a beaming smile carrying the kit and said “I’ve built a radio”, flicked a switch and it started playing music, he said “it’s Radio 2” He had done this one entirely on his own. He likes building things and is an experienced Lego fan so that helped. Brilliantly inspiring toy!

    Well worth the money, clever design, excellent sturdy mouldings, well built electrical modules and really easy to follow instructions with nicely written educational background text. 10/10 from this retired enginee

  4. Anonymous says:

     United Kingdom

    Bought this for my 8 year old after he’d enjoyed a topic at school using circuits. Really great fun and easy enough to do following the instructions. After about a week of playing with it, he did eventually get a bit bored as it begins to get slightly repetitive perhaps. But maybe that’s just my son’s short attention span! Still recommend though.

  5. Anonymous says:

     United Kingdom

    This is such a great product for fun and learning.
    Our 6 year old can follow the instructions and build the smaller circuits. Also a great tool for quality parent – child time, building the more complex circuits together.
    While there are less expensive products on the market, the quality of this one is excellent and the range of different circuits you can build is great. Would say it is definitely value for money.

  6. Anonymous says:

     United Kingdom

    Golden Review Award: 5 From Our UsersWe bought this in 2012 for our oldest son. He loved it and spent many hours playing with it. We got it out for our youngest son a few weeks ago and sadly the spring had broken in the battery unit. A quick google and we found John Adams has part replacements available – for about 2.99 for a new battery unit; the kit was good to go again. Our youngest loves it as much as his older brother did.
    Fantastic toy which entertains kids for ages. Lots of learning opportunities disguised as fun play. Instructions are clear and the parts are robust with everything fitting neatly in the box. Highly recommended.

  7. Benjamin5951 says:

     United Kingdom

    Golden Review Award: 28 From Our UsersI bought this kit my son’s 5th birthday – the box says this kit is for 8 year olds and older so I was taking a risk. It’s a lovely kit – clear instructions and durable – and there’s a place for all the parts when it’s put away. My 5 year old needed a bit of help to understand what to do but once he understood he was able to make some of the simple circuits himself. There’s a little motor which spins a rotor into the air – he can build the circuit himself and spend the next half hour playing with the rotor.

    There’s no question that this is his favourite birthday present – 2 weeks on and he brings it to me and asks if we can build something. Together we’ve built the burglar alarm, radio and voice recorder – he can follow the diagrams, the most difficult part for him is working out which part goes on the bottom on the more complicated circuits.

    I would say people shouldn’t be put off buying this for children slightly younger than 8 – especially if they like taking things apart and seeing how they work.

    My 10 year old daughter has also been interested in this kit as well (when her brother is not around she has enjoyed building a few things). She is able to follow the instructions without any help.

    I feel this is a really well designed kit and recommended it. Both my children like it.

  8. TracieJZOS says:

     United Kingdom

    Golden Review Award: 10 From Our UsersThe John Adams brands deservedly has a really poor reputation for producing toys that are overpriced and don’t live up to the hype but John Adams have excelled themselves here and have created a set that offers hours and hours of fun for a great price. Despite the John Adams branding, this is one toy that I can wholeheartedly recommend to others.

    The set is officially recommended for children over the age of eight years old which I think is a fairly accurate recommendation if you are intending to have children playing with this independently with little adult intervention. My middle son was slightly under the minimum age recommendation when he first received this set, however, but this did not affect his enjoyment at all. He did need some assistance initially to understand how all of the pieces fit together and how they are represented in the pictorial instructions as not all of the pieces are immediately obvious although it is simplified as much as it can possibly be.

    My sons have their favourite experiment with this set and it is, without question, the one which causes a plastic spinner to fly up into the air. This is one of the first experiments in the booklet and consists of a fairly simple circuit so it is very quick and easy to put together but the results are very visually impressive. It is so straightforward that my ten year old son is able to build the circuit from memory without needing to refer back to the instructions at all and has been able to do this for a year or two.

    Some of the experiments are not quite as successful and it can be a little disappointing and frustrating to spend time putting together some of the more complex circuits for the results to be less than great. Experiment number 75, for example, is supposed to be a basic radio and takes quite a while to build. Whilst the completed circuit does work and there is an audible radio crackling we have struggled to get any proper recognisable music or sounds coming from the completed ‘radio’. There are similar circuits that produce more impressive results from the small speaker though.

    We’ve owned this set for several years now and it is something short of a miracle that the entire set remains intact and not a single piece of equipment has ever gone astray. Highly recommended

  9. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersI confess, I’m a bit of a geek and my geekiness seems to have passed on to my eldest son. This electronics kit really was a great investment for us both. We’ve enjoyed working through some of the projects together and learning the basics of electronics. My nine year old sometimes just wants to make the final product, without reading the helpful explanation and teaching notes in the instruction and projects book, but whether he’s rushing straight to the big projects at the back of the book or taking his time with the basics, he’s spent a lot of time with this kit. There is an impressive variety of options and projects to try out. He particularly enjoys the voice recorder, alarm and flying disk.
    Obviously, this is a kit for children, but I won’t deny that on several evenings, I’ve found myself playing with it, long after he’s gone to bed!!! However, it won’t be long before we’ve tried every project a couple of times and we want to progress onto “proper” electronics, without the simplified ‘plug n play’ features that this kit offers, but for getting started, this is great, safe and fun. No soldering iron required!!!

    The regular retail price of this is a little high for what you actually get, but I bought this when it was almost half its regular price, which felt a bit more appropriate. The quality is good though and this doesn’t feel cheap. This is my first John Adams purchase and if the quality of their other kits matches this one, it won’t be my last.

  10. JefferyGunther says:

     United Kingdom

    Golden Review Award: 26 From Our UsersI bought this technological kit as a possible means of distracting my 10-year-old grandson away from his long-time addiction to video games. There was the possibility that this introduction to electronics would grow into a longer-term hobby with real electronic components. It’s too early to say if this will happen but I can report that this kit was an immediate success. I think the designers of the kit have done an excellent job of persuading young minds that they can be an “electronics genius” by making the simple chunky pieces plug together easily to achieve working electronic gadgets after only 15 to 20 minutes of effort. The excellent book of instructions is so simple to follow. Start at the first VERY simple project and work through the book to more complex (but still simple to make) projects . that’s the idea that the designers had. However, I guarantee that your youngster will immediately flip to the middle of the book and insist on making a lie detector or burglar alarm. That’s fine, because with your help, the REAL educational element of this kit is learning to follow the very clear circuit plans. Every part is colour coded, shape coded, symbol coded and number coded, so even if your child is dyslexic or colour-blind they should still be able to achieve “electronics genius” status just by copying the circuit picture.

    What parent will not be bowled over when their little genius appears and says “listen to this” and proceeds to tune into Radio 1 with his kit of electronic Lego? This kit is truly rewarding at all sorts of levels for both young and old alike, but be warned, your knowledge of electronics after completing all the projects will still be zero. It is a fantastic and stimulating introduction to the world of electronics without ever teaching you anything about electronics. This was brought home to me when I recently visited my grandson and he proudly involved me in building an FM radio. At one stage he asked me to hand him the 100 headphone part.. Puzzled, I asked which part did he mean? When he picked the part he had spoken of and it was a 100-ohm resistor (ohms being the unit of resistance) that was marked with is technically correct symbol 100 W.

    You can preview all the project circuit diagrams and kit contents by going to the John Adams website and viewing the downloadable pdf files. See for yourself just how beautifully simple and clear they are.

    If my grandson does want to start learning about real electronics then this kit will also serve as an elegantly simple teaching vehicle for understanding how circuits and basic electronic components work.

  11. KristaMcCutcheo says:

     United Kingdom

    Golden Review Award: 2 From Our UsersI bought this for my ten year old daughter and the whole family including me and my husband love it. It has a plastic board, onto which all the clearly labelled components snap. Each piece is created to snap onto the others with a very durable popper system that works easily and is perfect for children of 8+
    All of the many types of switches, motors etc are clearly labelled and the accompanying booklet gives 100+ experiments to do starting from the very simple up to some reasonably complicated circuits. The great thing is that kids get confidence from the start as the first circuit is very simple, takes less than five minutes to join together and is a working light. The second is a fan, the third launches a plasic disc into the air! My ten year old literally whooped for joy at this toy and it is with serious difficulty we can convince her to pack it away when it’s time to stop playing.
    I honestly wish all toys were built like this as it really couldn’t be better. Someone has really thought about how to make a simple, durable, set that is also amazing fun and really makes you think. Even my older teen daughter regularly comes in to watch her younger sister use it, and loves it too (and being the age she is, she generallly shows little enthusiasm for anything!)

    One point to note, you need 4AA batteries, so if you are giving as a gift have them to hand. Highly recommended.

  12. monstersfunhouse says:

     United Kingdom

    The kit came on time and well packed. It is well made and contains a considerable number of electronic components. Each is clearly marked so everyone, whether a complete novice or experienced in electronics, should have no difficulty identifying what each item is. There is a booklet containing a large number of experiments, each accurately described and with a very clear picture showing how each element should be positioned and clipped together. Everything we tried over the holiday worked perfectly. For a child, there are some exciting circuits that will hold their attention, just like a game. I would recommend the simple motor circuit, with a loosely coupled rotary fan blade, that can be ejected vertically like a spinning frizby. You can refine it from being simply attention-grabbing, to a slightly more skilled game where judgement is required to try and make the spinner reach a particular height. As the child grows older, it will be possible to use the kit to explain and teach some of the simple electric and electronic principles involved. There are PNP and NPN devices, light sensitive cells, a motor, a speaker, a chip capable of producing music or recording and playing back voice from a microphone, etc, etc. I was lucky enough to have been trained in electronics and so can develop usage in this way. But I would suggest that, for those not of the same bent, the kit could perhaps be enhanced even more either by including some information along these lines or by referencing simple tutorials that could be purchased later. Just a thought. All in all, I thoroughly recommend this kit, both for its immediate impact and for its potential for future educational use.

  13. Isabelle Thornton says:

     United Kingdom

    his is a really excellent product; bought for my 8-year old. Before I bought this, he & I had a go at a small make-it-yourself radio just before Christmas but it was too small & fiddly for him (although he was very interested I had to do most of the sticking resistors etc into the hobby board).

    I found this whilst browsing Amazon, so as he had shown some interest I bought it even though it seemed a lot of money at the time. Since Christmas he has not been able to stop playing with it ! The quality of the pieces is really very good and they seem quite durable; the instruction book (with over 100 different circuits to make !) is very well produced on quality paper, and he sits in his room for hours making the different circuits.

    What is great is that he already understands a bit about electricity from it; the idea that the circuit has to be closed for it to work, that the batteries produce “the volts that go around the circuit” and that circuits can have more than 1 loop. He tries his own circuits and sometimes even succeeds (I occasionally have to point out that he has short-circuited the batteries without a load, but he is getting there….)

    In summary: an educational quality product that (in hindsight) is well worth the money. I wish all “toys” were as well made & thought out. Thoroughly recommended for the age group 8-10.

  14. LanceHanes says:

     United Kingdom

    Golden Review Award: 2 From Our UsersMy husband who is an electronics engineer recommended buying this for our 6 year old son as part of his Christmas. We found it on Amazon for 10 less than anywhere else and with free postage it was very good value. It consists of various electronic parts which can be clipped together to make loads of different and amusing inventions. Everything from simple circuits which light up LEDs to complex things like a lie detector and motion sensor. The very clever thing about this kit is that all the parts ‘press stud’ together which makes it very simple to build. After initial help from his dad our son could build many of the less complicated circuits himself and was learning about things like variable resistors and how they work. His biggest thrill was helping to build the radio and the look on his face when the sound came out was priceless.

    The instruction booklet is excellent and starts off with pages explaining the parts and then shows diagrams of very simple circuits and gradually builds up to very complex ones so younger children could start simply and progress while older children will still be challenged. There are over 100 circuits to build in all.

    The aftersales service is also excellent as one of our parts was faulty. I phoned John Adams customer care and the lady I spoke to sent me a replacement and extra bulbs at no cost. They arrived within two days.

    My sons verdict was that it was his best Xmas present and I can honestly say that I can see him playing with it for a very long time to come.

    Quite pricey but in retrospect very good value.

  15. JoelPulley says:

     United Kingdom

    Golden Review Award: 5 From Our UsersMy daughter received this for her seventh birthday because she had been so excited by the electronics module she had done at school. This excellent kit has built on that excitement and has sustained her interest for considerable periods of time. It comes in a fairly substantial box which is well designed and has a plastic inner tray with sections to store all the components. What makes this different to other electronics toys is the way the pieces connect – they are easy to join through “press studs” and there is a clear plastic base on which to place your creation as you build (although the plastic base isn’t actually big enough for the biggest circuits. There are well over 100 different circuits to build, including a fan, (which can also be made to fly), a burglar alarm, several varieties of radio, doorbells, and a lie detector so plenty to be going on with! We haven’t done them all yet, but so far, every single one has worked really well. We have blown quite a few fuses through user error (although the users are now more careful so it doesn’t happen as often!), but they are easy enough to replace so it isn’t a major problem. The thorough instruction manual does explain what each component is although it is possible to build the circuits just using the numbers and colours of the various parts. This is positive because you can just get on and build without knowing what a “capacitor” is or does for example, but on the other hand, you may not necessarily be learning as much as you could be because you don’t actually need any knowledge to build the circuits other than just the instructions. I guess that really means that this kit can be what you make it.
    This isn’t the cheapest electronics kit on the market but of the several we’ve already bought, this is easily the best. It is sturdy and will provide hours of fun to children over about the age of 6 with some adult assistance, and with increasing independence the older the child gets.
    A really recommended buy, and if your child has expressed an interest in electronics, I wouldn’t hesitate to get them this. It is definitely worth the money.