Emergency molle led light

thingiverse

This is a compact, lightweight light that can be attached to any Molle-compatible backpack. It runs on a single CR2032 battery and features a small SMD LED. Electronics To create the electronic circuit, you'll need just four components: an LED, a switch, a CR2032 battery, and a battery holder. The LED is a compact SMD model that works perfectly with the 3 volts from the battery without requiring a limiting current resistor. For the switch, I used this specific one; cut off the metal tabs on the side and bend the legs slightly so it snaps into place securely. You can find it online at https://es.aliexpress.com/store/product/cltgxdd-1pcs-Toggle-switch-SK12D07VG4-3-Pin-PCB-2-Position-1P2T-SPDT-Miniature-Slide-Switch-Side/2065000_33000765268.html The battery holder was salvaged from an old PC motherboard. Glue it to the top of the model, but first solder two wires to its terminals. There's a small space underneath where you can run the wires through. Once you have the switch and battery holder in place, solder one of the LED terminals to the terminal on the left side of the switch, then one of the wires from the battery to the other terminal of the LED, and finally connect the other wire from the battery holder to the center terminal of the switch. Make sure to check the polarity on the LED. Extra Hardware To keep the lid in place, use two M3 screws (8mm long) and two M3 nuts.