Details 1. This link is exclusively for mechanical keyboard switches and stems. 2. Compatible only with SMD LEDs; switch LEDs cannot be used. All box switches in our inventory are new releases and will not damage GMK keyboards. It can be used for 2x3x4mm LEDs and 1.8mm LEDs, but you must solder the LED to the PCB first, then solder the switches. 3mm round LEDs cannot be used even if you solder the LED before the switches. 3. Lifespan is approximately 80 million cycles, which is longer than standard switches. 4. This switch is IP56 waterproof and dustproof. Kailh Box switches are IP56 rated to keep dust and moisture out. Created with a box around the cross stem instead of just the stem sticking up, they are built to avoid corrosion and debris buildup. The box extends to the contact plate and blade, providing extra protection. 5. Utilizes 18k gold cross-point technology for an enhanced typing feel. Box Black Linear Actuation Force: 60 gf (+/-10 gf) Pre-travel: 1.8 mm (+/- 0.3 mm) Total Travel: 3.6 mm (+/- 0.3 mm) Reset Point: 1.8 mm Box White Clicky Actuation Force: 50 gf (+/-10 gf) Tactile Force: 55 gf (+/-10 gf) Pre-travel: 1.8 mm (+/- 0.3 mm) Tactile Point: 1.7 mm Total Travel: 3.6 mm (+/- 0.3 mm) Reset Point: 1.8 mm Box Brown Tactile Actuation Force: 50 gf (+/-10 gf) Tactile Force: 60 gf (+/-10 gf) Pre-travel: 1.8 mm (+/- 0.3 mm) Tactile Point: 0.6 mm Total Travel: 3.6 mm (+/- 0.3 mm) Reset Point: 1.8 mm Box Red Linear Actuation Force: 45 gf (+/-10 gf) Pre-travel: 1.8 mm (+/- 0.3 mm) Total Travel: 3.6 mm (+/- 0.3 mm) Reset Point: 1.8 mm