LEDs أشعة تحت الحمراء 940nm 5 مم (عبوة من 10)

Used a few of these with a basic microcontroller setup, and the 940nm wavelength worked perfectly for a simple beam-break sensor without any visible light bleed.

Just wired six of these into my motion-triggered camera trap and they fired cleanly every time at 940nm. The 5mm size makes them easy to solder onto perfboard, even in tight spots. They're a solid, no-fuss buy for the price.

The 940nm wavelength is spot on for my night-vision camera setup, and all 10 LEDs in the pack lit up evenly on the first try. Soldering them onto a perfboard took no time at all, and the 5mm size makes them easy to handle even for a beginner like me.