Quite an unusual version of the classic Edison screw festoon lighting strings. It runs on a 24V DC supply and each lamp has an eight chip LED filament in it.
The listing has clearly been copied from other listings as it refers to the bases as both E14 and E27, and there's a good chance the spare lamp mention is just a listing error. (I didn't get one.)
The globes unscrew from the holder to reveal a 24V 8-chip LED filament on a simple plug assembly. It's very easy to break the filaments, and I doubt spares are available. You may have to improvise by making a new one out of two standard 12V filaments in series.
In this video I did manage to break a filament, and hacked in an alternative based on eight discrete LEDs in series. Some testing showed it needed an extra series resistor of about 100 ohms to get the current down to 15mA, which is a sensible level for light output versus LED longevity.
You could also solder a lamp holder to the plug so you could use standard 24V LED lamps inside the plastic dome. It's actually worth getting just for customising the globes.
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This is a very strange found on eBay It's 24 volt. LED for student and it's got the construction that you'd normally expect of this of outdoor fistoon. but you can't physically unscrew the lamps. You can unscrew the covers off the lamps, but all that exposes is the filament inside and a connector.

And interestingly, this listing said that it would come with a spare lamp and it showed the interior of that, but it didn't actually come with that. Let's brighten this image up a bit. So the power supply is a standard Christmas Lighting 24 volt in this case, a 6 watt power supply. and if you look inside each Globe The construction is this little connector in here.

Oh, I've just snapped that? Well, that's one less. That means I've got to hack this from there, doesn't it? That's not a great thing, is it? But there's the connector in here. and then you've got the matching connector here. and they've basically crimped in a couple of wires, one going to each end of the filament here.

and once you've plugged it in well, uh, assuming you don't break it like I've just done, you, then screw the cover back on. I Can see these being broken quite commonly by the people trying to fix them if the filaments feel it. makes me wonder if in the listing the reason they said that. you know it comes with one of these, but there wasn't one.

I Wonder if they've taken them out for use as spares to send out customers. But anyway, now comes the challenge. Let's make a replacement, uh, element for The Insider here out of discrete LEDs One moment please. Job done.

let's try it out. So I made a spiral of straw hat LEDs Warm White Straw Hat LEDs and I found it initially when I was doing some experiments with voltage and current that with eight LEDs in series as there are in these filaments, the current was quite High through these LEDs it was about 30 milliamps by adding a 100 ohm resistor. in series it can go anywhere in a series that dropped the current down to 15 milliamps and when you plug it into the holder making sure I get the polarity right because I've marked the polarity in it. It just gives us sort of cluster of points of light that when you screw the cover over the top making sure I don't short this together in the process, then you screw the cover over the top or I'm going to shorten them out in the process and I see for all ends dramatically.

I'll tell you what: I'm going to unplug this before I before I nuke the LEDs that'll be a good idea so I shall smush these in, screw this down, pair it back up again and there is an improvised alternative to the filament where it's just random Points of Light inside there, it doesn't look too bad I Have to say so that's just using standard what they call Straw Hat LEDs the warm white ones. Uh, just eight in the series with a 100 ohm resistor. It's a balance. the current a bit.

Yeah, that looks pretty good actually. It's helped with the fact that you get more Reflections from inside here in this globe. Uh, but these are interesting lights. however.
I really think that once you've bought them, you're well, that's you. You've got them and you're probably not going to be able to get replacement? Uh LEDs I'll poke this gingerly because I don't want to break another. Although I could just make another of these. This also gives you the opportunity if you end up making Replacements that you could use other colors, noting that you'll probably have to adjust that resistor to match if say, for instance, if you used red, LEDs you might have to use a higher value resistor to match up to the 24 volts that this air connector has ever.

That is it. Uh, interesting string of lights, but probably completely unserviceable, but hackable and that's really quite good in its own way.

18 thoughts on “Hackable ebay lighting festoon”
  1. Avataaar/Circle Created with python_avatars lmw lmw says:

    Nice.

  2. Avataaar/Circle Created with python_avatars Sean Smith says:

    You can buy those LED filaments individually in different colours; super fragile though.

  3. Avataaar/Circle Created with python_avatars Mark N says:

    Wow! that's a cool bulb now!! Looks awesome!! Where did you get those little "straw hat" LED's? Way cool…Ebay you say?

  4. Avataaar/Circle Created with python_avatars weasel box says:

    <3

  5. Avataaar/Circle Created with python_avatars Shadow_of_STLKR says:

    Is it posible to cut that element and join it to another to get more LEDs in series and increase lifetime?

  6. Avataaar/Circle Created with python_avatars Eric says:

    @bigclivedotcom . I have a project that I'd like to see you build. I have lots of 6v batteries that I use for the kids powerwheels cars. I'd like to build a charging station that I can hook up multiple Batts to so I can always have a fresh stock when they run low. Is this something you can do?

  7. Avataaar/Circle Created with python_avatars 16karatsoundsentertainment says:

    Can you make out of these color led changing instead of using warm white

  8. Avataaar/Circle Created with python_avatars Christopher William Dodd says:

    Sausage Fingers.

  9. Avataaar/Circle Created with python_avatars Stephen Eyles says:

    I can imagine some truckers hanging these round their cab and plugging into the 24V outlet!!

  10. Avataaar/Circle Created with python_avatars Greg T. says:

    Thank you for another great video. But we needed pink or red LEDs twisted into heart-shape for the Valentines Festivals.

  11. Avataaar/Circle Created with python_avatars Michael Skelton says:

    What sort of power draw do these have?

  12. Avataaar/Circle Created with python_avatars G7MKS says:

    Thanks very illuminating, one hopes that the power supply is isolated. People will always learn the hard way and not turn the power off before changing the lamps. Mmmmm

  13. Avataaar/Circle Created with python_avatars Ian Gardener says:

    I hate those super fragile filaments.

  14. Avataaar/Circle Created with python_avatars Lumibear says:

    I bought my mum one of these for last Christmas, except with different coloured โ€˜light bulbsโ€™. Theyโ€™re quite pleasing.

  15. Avataaar/Circle Created with python_avatars Marc Se7en says:

    Shouldn't that be "Breakable eBay Lighting Festoon?" ๐Ÿคฃ

  16. Avataaar/Circle Created with python_avatars Peter Warriner says:

    Looking for a low cost PCB inspection camera (hdmi) … what do you use?

  17. Avataaar/Circle Created with python_avatars teslaTrooper says:

    Do the housings look somewhat weatherproof? This could be nice to put all kinds of LEDs inside, even wireless addessable ones.

  18. Avataaar/Circle Created with python_avatars ROVER25X says:

    Link please big man!

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