Here we have an ECO-Hero Replacement Tactile PCB LED Switch. The same set found inside of our ECO-Hero DIY Empty Hilt Kit. Please note, these PCBs are 1mm thick and their solder pads are small. This will require you to use a sharp pointy solder tip. Also, being thinner at 1mm, these PCB's heat up much faster. Be sure not to hold your iron on the pads for too long. Applying too much heat or using the wrong tip can damage the pads. Use solder flux to tin your pads and connect your wires without holding the iron on the pads for more than 1 second. Red LED Specs: Forward Voltage: 2.0 - 2.2v Forward Current: 20ma Green LED Specs: Forward Voltage: 3.0 - 3.2v Forward Current: 20ma Please be sure that before ordering, you are fully aware of the shipping policies outlined here: https://thesaberarmory.com/shipping-policies/