Details 1. This link is only for the switches and stems for mechanical keyboards. 2. It can only be used with SMD LEDs, not with switch LEDs. All Box switches in our inventory are the new version and will not damage GMK keyboards. It can be used for 2x3x4mm LEDs and 1.8mm LEDs, but you need to solder the LED to the PCB first, then solder the switches. 3mm round LEDs cannot be used even if you solder the LEDs before the switches. 3. The lifespan is approximately 80 million times, which is longer than regular switches. 4. This switch is IP56 waterproof and dustproof. It utilizes 18k gold crosspoint technology, which enhances the typing feel. Box Navy is tactile and clicky, with a spring force similar to Heavy Light Blue, and a more pronounced clicky feel. Box Jade is tactile and clicky, with a spring force similar to Box White, and a slightly more resistant clicky feel.