CHERRY MX Illuma is not a fundamental structural overhaul; rather, it is a targeted fix for two long-standing pain points of the MX platform: stem wobble and uneven RGB lighting. By redesigning the top housing and stem-guiding mechanism, and incorporating an internal light-guiding lens, CHERRY has brought ”stability” and ”lighting performance”—areas where the domestic custom mechanical keyboard market has already reached an extreme level of refinement—back up to CHERRY’s own internal standards. Available in both linear (Red) and tactile (Brown) versions, and rated for a lifespan of 100 million actuations, the MX Illuma represents CHERRY’s use of its proven Gold Crosspoint contact technology to answer the question: ”Can the MX switch still keep pace with the keyboard aesthetics of 2026?”
I. Core Improvements: Tighter Guidance and Integrated Lenses
The changes in the MX Illuma focus on two physical aspects.
First, the tolerances for the stem-guiding mechanism have been tightened. Officially described as ”optimized mechanical guidance,” this involves adjustments to the material and wall thickness of the plastic components, which reduces lateral stem wobble during keypresses—and the extraneous noise that comes with it. Additionally, the redesigned top housing lowers the risk of keycaps colliding with the edges of the switch housing. This improvement directly addresses the ”joystick-like” feel—the excessive lateral play—that has long been a common criticism of MX switches, particularly when used with tall keycaps or on larger keys.
Second, there is the integration of a light-guiding lens. The MX Illuma is available in versions both with and without this lens. The version with the lens features an internal optical component designed to direct and diffuse RGB light, resulting in brighter and more uniform illumination of the legends on the keycaps. Previously, the RGB lighting performance of CHERRY’s MX switches lagged behind the ”independent light-pipe + transparent top housing” design widely adopted by domestic brands. With the integration of this lens, CHERRY has effectively caught up in this area.
II. Switch Specifications: Red and Brown Switches—Familiar Parameters
The initial models in the MX Illuma series follow the traditional design philosophy of the MX platform.
MX Illuma Red (Linear): Features an actuation force of 45cN and a total travel distance of 4.0mm, with no tactile bump. The specifications are essentially identical to the classic MX Red, with improvements focused on stem stability and lighting performance.
MX Illuma Brown (Tactile): Features an actuation force of 45cN, a tactile force of 55cN, a pre-travel of 2.0mm, and a total travel of 4.0mm. This delivers the classic ”Brown switch” feel—a perceptible tactile bump without an audible ”click.”
Both variants utilize a 5-pin design, ensuring compatibility with most hot-swappable keyboards. Rated for over 100 million actuations, they retain CHERRY’s core Gold Crosspoint contact technology, which offers self-cleaning and corrosion-resistant properties. Both models are sold in boxes of 36.
III. Distinguishing from the MX Emerald Reef
Released alongside the Illuma series is the MX Emerald Reef, which serves a different purpose. The Emerald Reef is a silent tactile switch with an actuation force of 41cN and a tactile force of 60cN; it incorporates a patented dampening structure for both the downward press and the upward return, with a rated lifespan of 50 million actuations. The Illuma series is not designed primarily for silence; rather, its enhancements focus on stability and lighting. If a user’s primary requirement is ”quiet operation,” the Emerald Reef is CHERRY’s solution; if the priority is ”uniform lighting and a more stable stem,” the Illuma is the more direct choice.
IV. Scope and Assessment
The improvements in the MX Illuma are genuine, but its positioning must be understood accurately.
It does not represent a revolution in typing feel. The 45cN actuation force of the Red switch and the tactile curve of the Brown switch are fundamentally the same as those of the classic MX switches. In short, the Illuma series offers ”greater stability and brighter lighting while maintaining the same familiar typing feel,” rather than introducing an entirely new tactile experience. For users accustomed to the intense competition among domestic switch brands (such as TTC, Kailh, and Gateron) regarding smoothness and acoustic tuning, the appeal of the Illuma series hinges on how much you value the CHERRY brand and the proven reliability of its ”Gold Crosspoint” contact system.
The benefits provided by the integrated lens depend heavily on the keyboard’s design. To be effective, the keyboard must feature compatible LED placement—typically a south-facing or inverted-LED configuration—and the keycaps must have translucent areas that align with the lens’s light-projection angle. If the keyboard’s LED positioning or the keycaps’ light-transmission structure are not well-matched, the visual enhancement offered by the lens will be diminished.
The true competitors to the Illuma series are not the offerings from domestic brands, but rather CHERRY’s own legacy switches. For those currently using older-generation MX switches, the Illuma series represents a meaningful upgrade—delivering greater stability and improved brightness while maintaining the classic, familiar feel. For users who have already transitioned to custom switches from domestic manufacturers, whether the improvements in the Illuma series are compelling enough to draw you back to CHERRY depends on how you prioritize ”stability” and ”lighting performance.”
