Sure, you can pick from a whole world of different LEDs, and drivers. But there are also a bunch of cheap headlamps that are small and bright.
Comment on Don't let people sell you flashlights :)
MossyFeathers@pawb.social 4 months ago
Is it possible to diy a headlamp? I’ve always thought it’d be kinda cool and silly to have an obscenely bright flashlight, but I prefer headlamps because it leaves my hands free (and it’s automatically pointing at whatever I’m looking at, for better or for worse).
jared@mander.xyz 4 months ago
perestroika@slrpnk.net 4 months ago
It sure is.
A typical “obscenely bright” LED chip might be Cree XML, but many similar chips exist. Then you need a driver. Some are fixed while some adjustable with a tiny potentiometer. You’d need an 18650 cell holder (it can be made too, an 18650 will go into a leftover piece of 20 mm electrical cabling pipe with a spring-loaded metal cap engineered of something).
Myself, I bought a nice head lamp, but it broke after one year. The driver board failed. Being of the lazy variety, I replaced the board with a resistor to limit current and now it’s been working 3 years already. Not at peak luminosity, the resistor wasn’t optimal of course. :)