Gikfun Electronic LED Flashing Lights Soldering Practice Board PCB DIY Kit EK1874
Original price was: £269.99.£10.78Current price is: £10.78.
Price: £269.99 - £10.78
(as of Jun 08, 2025 16:42:08 UTC – Details)
The LED light flows from the inside to the outside, creating the effect of the exploding water lamp.The speed of LED flow can be adjusted to meet various demands. High quality PCB,Even beginners can easily weld successfully.
Installation Steps:
1.Install RES: 200 ohm resistor install on R2-R10 pad, 1K ohm resistor installed to R1, R2- R10 pad. 10K ohm resistor installed to R21 pad
2.Install a red LED to D1
3.Left to right, red, yellow, red, yellow in order to install LED. The LED’s anode corresponds to the square pad
4.Red-yellow-red-yellow continues to install LED
5.Installation completes all LED
6.Install adjustable resistance cap, electrolytic capacitor and DC power socket
7.Install S9013 triode to Q1-Q10 position pads
8.Install integrated circuit. Be careful pin direction
9.Solder the battery box red line on the VCC. The black line is weldered to the GND. Check the direction of the PCB capacitor
The LED light flows from the inside to the outside, creating the effect of the exploding water lamp.The speed of LED flow can be adjusted to meet various demands. High quality PCB,Even beginners can easily weld successfully.
High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully.
Comes with user manual and online PDF file, which will guide you how to finish step by step, perfect for school basic electronics experiment projects.
Left to right, red, yellow, red, yellow in order to install LED. The LED’s anode corresponds to the square pad
Operating Voltage: DC4.5-6V. PCB size: 100*80mm
Customers say
Customers find the soldering practice board easy to assemble with good instructions and simple circuit design, making it a great value for beginners. The build quality is excellent, and customers say it’s fun to use, with one mentioning it’s particularly satisfying to work with. Customers appreciate the variety of parts and that it works brilliantly first time, though they note the solder pads are quite small.
13 reviews for Gikfun Electronic LED Flashing Lights Soldering Practice Board PCB DIY Kit EK1874
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Original price was: £269.99.£10.78Current price is: £10.78.
Mr. S. P. Davies –
A very enjoyable and easy electronics kit – LOTS of soldering required.
The circuit design and board is really good, to the point I hardly needed to refer to the instructions, the solder pads are quite small so a fine tip is required, I did this in an evening but I’m too impatient to make it last, there’s a LOT of soldering due to the amount of LED’s, I found it easier doing 1 row at a time otherwise it gets messy.I had a bit of a game soldering the negative LED leg onto the tiny pad, I would advise adding some flux to make it easier but I managed without.In theory you don’t need a multi-meter as the amount of resistors makes sense, though the odd single one was a little confusing, if you follow the instructions and fit the rest then there’s only one place left for it to go which is: R1.It works a charm and the little potentiometer lets you vary the speed of the animation, the USB cable option made it easier than faffing around with 4 x AA batteries so I didn’t solder the holder (I’m a poet!).The list of uses once it’s finished:123Nope I can’t think of one but it was really fun to put together and see it working.A great value kit with a ton of parts.
Beezzer –
Great introduction for beginners
Fun product for beginners. Although I found one of the LEDs was reversed so check all items with a multimeter before soldering. Good working practice anyway!
rebasti –
Very good kit
This is a well put together kit with a good printed layout to work fromThe parts are listed at one side and properly noted on the photo reproductions of the printed circuit boardsThe circuit is relatively simple and as printed on the sheet very easy to followI should note that there must have been a change in the design as there were more LEDs than were actually required by the design
Jonathan G. –
Quality product, does what it says on the tin
Worked a treat, got me soldering componants nice and quickly in no time. The board is quite well laid out and has various parts that range from easy and tricky to solder in place. The final product looks nice enough, and runs off of the included USB power cable, although this is more for practice than the actual finished piece so its not exactly all that functional just a bunch of blinking lights that you can adjust the speed on.
R K E –
Great kit to practice soldering
This was my first attempt at assembling an electronic circuit. You need to be methodical and plan each step ahead but it was straightforward and worked first time. A fine tipped soldering iron is essential. I used a USB powered little iron (Silverline 463429 8W) which was ideal.
John –
Great Board, Poor Quality LEDs
I bought this to build on a live stream, and have been building many kits on stream for the last few weeks (and building kits as a hobby for many years).The PCB for this kit is excellent. Nice to work with, a decent size, and with the exception of one pair of pads that aren’t quite lined up properly, a lovely layout. They’ve even taken care to orientate all the polarised components the same way, for ease of assembly, and they made all the anode pads square, leaving the cathode pads circular.Why only three stars then? The quality of the components included. Three of the LEDs burnt out (scorch marks etc inside) within the first few seconds of use. That was with a 4.5V DC supply attached (the battery pack takes 4 AAs for a total of 6V input, but I was running an external bench supply at 4.5V instead). The two spare LEDs I hadn’t soldered in were DOA – I soldered them in and they never lit despite the rest of the ring lighting correctly. Swapped them out for a couple of spares from my bits box, and whilst they aren’t matched in colour or intensity, they work perfectly fine.There were far more ‘spare’ red LEDs than yellow LEDs – surprising really as either you’d expect the correct amount, or you’d expect an equal number of spares for both. The packaging was also quite poor – the ICs had no protective foam packing or plastic tube around them, meaning the legs were bent and mangled on one of the ICs and needed straightening before I could even slot them into the board. A couple of DIL sockets for the ICs to slot into would also have been a nice touch, although not strictly necessary and that would have made them taller than the LEDs.The instructions were great. They told you everything you need to know, including which resistors go in which slots. The board had the 1K resistors marked (well, all except one – be careful you don’t get caught out there).All in all a reasonable kit, but not without its problems.
Willow –
Good beginner kit, if a little fiddly
Going to be building a guitar pedal soon so thought I’d do a quick refresher kit to get my eye in. Like a lot of these type of kits it’s a pulsing light display driven by a 555 timer and Johnson decade counter, with a pot to trim for clock speed.Everything comes jumbled in one bag and there was some oxidation on the IC pins, but nothing that affected the final build. Had one faulty LED and another was cased the wrong way around, as confirmed with a multimeter.It’s a tight fit, the LEDs are smaller than the usual 5mm fare, more like 3mm, and the pads are absolutely tiny; I’ve seen bigger 1206 pads. They also don’t supply IC sockets which is a little cheap and means you need to be mindful of heating the chip when soldering.Overall it’s a decent little kit, I just feel it didn’t have to be quite so cramped, and sockets would have been useful for a raw beginner trying this.
CKC –
Instructions Unclear
Instructions difficult to understand and low resolution images do not help.
Jose C. –
Ok
idktho –
What’s weird is that the outermost ring of lights (the furthest one from the center on each line) only light up on alternate cycles. When I power it on, everything works exactly as intended for one cycle, including those outermost lights. On the second cycle, everything works perfectly except those lights. They light up on the third cycle, fifth, etc. They don’t look brighter or dimmer, they don’t flicker weirdly, and they don’t do anything else to indicate that anything is wrong with the board, the components, or my soldering job.So I guess there’s something wrong with one of the ICs, either the IC itself or my soldering.Anyway, even if I was shipped a faulty IC and I technically received a faulty product (although I’m inclined to believe that it’s my fault, or the IC was damaged in shipping), it’s still a 5 star product. I got the soldering practice, I powered on the device, it confirmed that all my “joins” or whatever were good (except maybe on one of the ICs, if that is indeed the cause of the odd behavior). Great stuff.Also, the instructions could be a little more verbose. I did watch some YouTube videos to get everything figured out. But that’s fine.
Oneonetwo –
This was a fun kit that my kids didnât succeed in getting to fully work( she got the center lights to flash). It did improve her soldering skills so I view that as a positive. The transistors are not marked well and she had to reverse solder some connections. Over all the learning on this project was great as she had to reheat solder to remove some pieces which we didnât know was possible and probably the reason it didnât fully work as intended.
p. Moseley –
It is good for practicing soldering because, You want your led’s to fit flush to the PCB.Which takes extra time and technique which is great for practicing ! So your work looks good …
Terry M –
Built this kit in an afternoon, easy build so beginners can do it. Follow instructions on QR code. USB to DC power cord was bad, shorted. Replaced and it works as intended. Kinda boring as kits go, just blinks LEDs in pre determined pattern. Fun though.