While the HMX Egg Yolk and HMX Lulu Silent switches may have some significant differences, they are at least compatible: both are standard MX mechanical switches. That said, the HMX Egg Yolk is linear, while the HMX Lulu Silent is of linear type. They both feature PC top housing, standard stem shape, 22 mm single-stage spring, 45 g actuation, 2 mm pre-travel, however, they come with different bottom housing (PA66 Nylon + S1 center vs PA66 Nylon), stem material (M2 vs POM), bottom-out force (53 g vs 52 g), total travel (3.60 mm vs 3.80 mm). All in all: they are quite similar. Let's check out this side-by-side specs rundawn with more details, availability -- and even current prices -- to figure out which one fits you the best!
The HMX Egg Yolk is a linear standard MX mechanical switch with PC top housing, PA66 Nylon + S1 center bottom housing, and M2 stem (standard shape). It features a 22 mm single-stage spring. The 45g actuation occurs at 2mm. The 53g bottom-out occurs at 3.60mm. Double-shot bottom housing. Factory lubing? Yes! Designed by HMX. Manufactured by HMX. | The HMX Lulu Silent is a linear standard MX mechanical switch with PC top housing, PA66 Nylon bottom housing, and POM stem (standard shape). It features a 22 mm single-stage spring. The 45g actuation occurs at 2mm. The 52g bottom-out occurs at 3.80mm. Extra: Light diffuser. Factory lubing? Yes! Manufactured by HMX. |
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| Name | HMX Egg Yolk | HMX Lulu Silent |
|---|---|---|
| Type | linear | linear |
| Footprint | 5-pin | 5-pin |
| Top housing | PC | PC |
| Bottom housing | PA66 Nylon + S1 center | PA66 Nylon |
| Stem material | M2 | POM |
| Stem shape | standard | standard |
| Spring | 22 mm single-stage | 22 mm single-stage |
| Actuation | 45 g | 45 g |
| Bottom-out | 53 g | 52 g |
| Pre-travel | 2 mm | 2 mm |
| Total travel | 3.60 mm | 3.80 mm |
| Lube | Factory lubing? Yes! | Factory lubing? Yes! |
| Designer | HMX | - |
| Manufacturer | HMX | HMX |
By tracking prices and in-stock status of 30+ well-known keyboard stores worldwide, we can state that the HMX Egg Yolk is available at a single shop at the moment, while the HMX Lulu Silent can be found in multiple stores.
Clicking the links below take you to some notable keyboard shops offering HMX Egg Yolk and HMX Lulu Silent switches. When accepted, the prices indicated already include the discount - use the KBDNEWS coupon code at checkout to claim your saving!
Prices, discounts, and stock status are checked regularly; however, changes since the last update cannot be ruled out. Everything here is for informational purposes only. Check the product pages for the latest prices!
Comments on HMX Egg Yolk switches | Comments on HMX Lulu Silent switches |
The Egg Yolk is HMX's first switch with a double-shot bottom housing – and that's exactly what makes the difference in the sound profile: a deliberately engineered S1 post sits in the middle of the PA66 bottom, right where the stem hits. The result is an exceptionally clacky, crisp keypress with a surprisingly full, rounded character – substantial and defined, without letting the classic HMX clack drift into the bright or shrill range. The hardened M2 stem keeps the 3.6mm travel glassy-smooth throughout and adds a poppy snap on bottom-out. Currently considered one of the clackiest linear switches around – ideal for loud, lively builds with character – MonacoKeys. | No comments on HMX Lulu Silent switches. |
