So, I really got into Lego not too long ago. And really like the lighting kits. Some, are pretty expensive and I feel they very seem simple? Unless I’m missing something. I’ve got bought Lego, and I’m doing some odd basic MOCs which would need lighting that isn’t necessarily readily available as a set. So wondered if anyone knew the names of these parts to look for (I’ve looked for micro LEDs, etc) but can’t find just the LED, or is it actually that hard to solder these things together to do my own custom ones? as buying the individual parts in bulk and being able to custom make them would be a lot cheaper for the amount of lights I’d probably need. I do wonder if I’m being really naive in this thinking though? Any suggestions? pics below IMG_5162 by pete* posted 14 Feb 2026 at 22:30 IMG_5167 by pete* posted 14 Feb 2026 at 22:30 IMG_5168 by pete* posted 14 Feb 2026 at 22:30 IMG_5164 by pete* posted 14 Feb 2026 at 22:30 IMG_5163 by pete* posted 14 Feb 2026 at 22:30
You can buy pre-wired micro LEDs. Like, nano sized ones. https://evandesigns.com/collections/hobby-leds
I thought I'd replied to this . Although I also love my Lego, I've not messed around with lighting as it's not my thing. Nexxo's suggestion above looks good. If you do pursue this further, please post updates!
I actually found bits on AliExpress. So bought them a bit ago. But i'm not electrically minded so, just attempted what I would with them. I took off the connector on the USB power, and put that into the splitter, and then put the light (wrong LED/wire size, its a size smaller than usually used in Lego lights) in the other side. Plugged in the USB and the light flicked and died. I thought it was because I didn't have the 'extension' plate thing between, but i've tried it with one and the light blew again. Could be crap lights? I tried the same with some I got from KYGlaring and their lights light up fine. So, still wondering. Can't order more at the moment as money is needed elsewhere. haha How I connected second time. Comparison between the KYGlaring normal 'Lego Lights' (the larger one) and the ones I got of AliExpress (my fault for sizing. I selected wrong one.)
The KYGlaring lights run on <6V (according to their specs), clearly meant for a 5V USB power supply. Close inspection of their photos shows that they come equipped with a resistor. The AliExpress LEDs almost certainly don't come with a resistor. This means that they run on anything from 1.8V (red LED) to 3.5V (blue and white LEDs). By plugging them straight into a 5V USB power supply you basically blew them up. That is why they failed. They need a resistor.
