The HMX Lunar Stone and BSUN Spring switches are both standard MX mechanical switches of the linear breed. They both feature POM top housing, POM bottom housing, standard stem shape, 45 g actuation, 2 mm pre-travel, however, they come with different stem material (POM vs LY), spring (KOS single-stage extended vs stainless steel), bottom-out force (55 g vs 52 g), total travel (3.60 mm vs 3.40 mm). That said, they are quite similar. Let's check out this side-by-side specs rundawn with details, availability -- and even current prices -- to figure out which one fits you the best!
The HMX Lunar Stone is a linear standard MX mechanical switch with POM top housing, POM bottom housing, and POM stem (standard shape). It features a KOS single-stage extended spring. The 45g actuation occurs at 2mm. The 55g bottom-out occurs at 3.60mm. When buying 90 or more Lunar Stone switches, they will come in a brand-new switch container. Factory lubing? Yes! Designed by Unikeys. Manufactured by HMX. | The BSUN Spring is a linear standard MX mechanical switch with POM top housing, POM bottom housing, and LY stem (standard shape). It features a stainless steel spring. The 45g actuation occurs at 2mm. The 52g bottom-out occurs at 3.40mm. Factory lubing? Yes! Manufactured by BSUN. |
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| Name | HMX Lunar Stone | BSUN Spring |
|---|---|---|
| Type | linear | linear |
| Footprint | 5-pin | 5-pin |
| Top housing | POM | POM |
| Bottom housing | POM | POM |
| Stem material | POM | LY |
| Stem shape | standard | standard |
| Spring | KOS single-stage extended | stainless steel |
| Actuation | 45 g | 45 g |
| Bottom-out | 55 g | 52 g |
| Pre-travel | 2 mm | 2 mm |
| Total travel | 3.60 mm | 3.40 mm |
| Lube | Factory lubing? Yes! | Factory lubing? Yes! |
| Designer | Unikeys | - |
| Manufacturer | HMX | BSUN |
By tracking prices and in-stock status of 30+ well-known keyboard stores worldwide, we can state that the HMX Lunar Stone is not available at the moment, while the BSUN Spring can be found in 1 stores.
Clicking the links below take you to some notable keyboard shops offering HMX Lunar Stone and BSUN Spring 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!
HMX Lunar Stone sound test | BSUN Spring sound test |
No BSUN Spring sound test available. |
Comments on HMX Lunar Stone switches | Comments on BSUN Spring switches |
The HMX Lunar Stone linear switches are manufactured using HMX's brand-new full POM housing mold. It is the first full POM HMX switch. As the first full POM HMX switch, we expected it to sound and feel a bit different from other HMX switches in the market. They have proven to be quite unique; They sound fuller and thockier than most HMX switches yet still come with the bassy bottom-out sound. The travel feels very smooth yet there is audible scratch since that's what most people love about full POM switches – Unikeys. | No comments on BSUN Spring switches. |
