Kailh Speed Pro Light Green 50g

Quick Summary

The Kailh Speed Pro Light Green is a light, short-throw clicky switch with a crisp, bright click and quick actuation. It’s a near-sibling to the Speed Bronze, with a slightly longer pre-travel that gives a touch more travel before the click registers. Best for typists and gamers who want clicky feedback and speed without spending much.

Specs and Feel

The Light Green runs 50±10gf of actuation force over a short 1.7mm pre-travel and a 3.6mm total travel. That pre-travel is short enough to feel quick (this is still a speed switch), but it sits a little deeper than the ultra-short Bronze, so the click lands slightly further into the keypress. The housing is a polycarbonate top over a nylon bottom on a stainless-steel spring, a combination that gives the click a crisp, bright clack. The click is light and restrained rather than aggressive: you get clear feedback without an exhausting volume. Smoothness is good for a clicky switch, and the 50g weight keeps presses nimble and fast.

Tuning

As with any clicky switch, leave these stock. The click depends on precise contact between the click mechanism and the leaf, and lubing the stem rails will dampen or kill it, exactly what you don’t want from a clicky. If you hear ping from a switch, a tiny dab of spring lube is the only safe fix. Want a sharper click? Mount them on a stiffer plate with harder keycaps; a softer build rounds the click off. Otherwise, drop them in and go.

Verdict

Buy the Speed Pro Light Green if you want a crisp, light clicky speed switch and you like a touch more travel before the click than the snappiest speed switches give. Against the Kailh Speed Bronze, the Light Green trades a hair of speed for a slightly more conventional clicky feel: pick the Bronze for the shortest possible actuation, the Light Green if you want a little more travel under the click. Either way it’s a strong, cheap clicky.