Here we have an Emperor DS3 Replacement Tactile PCB LED Switch set. The same set found inside of our Emperor DS3 DIY Empty Hilt Kit.

Top Side:
GND = Switch Ground
SW = Switch Pad

Bottom Side
VCC = NeoPixel
GND = NeoPixel -
DAT = NeoPixel Data

Please note, these PCBs are thin and their solder pads are small. This will require you to use a sharp pointy solder tip.

Also, being thinner, these PCB's heat up 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.

Please be sure that before ordering, you are fully aware of the shipping policies outlined here: