
Cloudray
Cloudray 3 Pcs Laser Si Reflective Lens Gold Mirror 25mm for CO2 Laser
#69 in Engraving Machines & Tools on Amazon
$35.33at Amazon, price as of 13 August 2026, 09:10 UTC. Subject to change.
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Buy at AmazonEverything below is the listing’s own claim, quoted with the date we read it.
What Laser Oracle checked on this listingThe counts above in full, and the limits of reading a listing
Laser Oracle tracks the Cloudray 3 Pcs Laser Si Reflective Lens Gold Mirror 25mm for CO2 Laser because it is among the best-selling optics and safety on Amazon, currently #69 in Engraving Machines & Tools. According to the Amazon product page, read 13 August 2026, it sells for $35.33. That figure and the stock status come from the Amazon Product Advertising API and are refreshed every three hours, so neither is ever more than 24 hours old. Laser Oracle checks every listing in this category against three specifications that decide the purchase, and this one does not state optical density or certification. That is a fact about the listing rather than about the product: a seller who prints no figure has not told us the product lacks one. There is no sourced specification review on this page and there is not going to be one until there is a document to cite: the brands that lead this category publish no manuals or spec sheets, which is itself the reason these pages measure listings rather than restate them. Everything quoted below is the seller's own wording from the listing, read 13 August 2026, and it is a claim rather than a measurement anyone has checked. Laser Oracle does not test machines and does not claim to.
What this listing states
Checked against the specifications that decide a optics and safety purchase.
| Specification | In this listing | Across the category |
|---|---|---|
| Rated wavelength | Stated | 4 of 6 listings |
| Optical density | No optical density stated | 2 of 6 listings |
| Certification | No certification stated | 2 of 6 listings |
“Stated” means the figure appears in the title or the bullets. It is not a verification, and an absence is a fact about the listing rather than the product.
What the listing claims
Quoted from the Amazon listing, read 13 August 2026. These are the seller’s words, not our measurements.
- “Parameter Laser Mirror: This set includes 3 PCS si mirror with a diameter of 25mm (0.98inch) and a thickness of 3mm (0.12inch), providing a perfect replacement DIY part for your CO2 laser machine, engraver, k40 mirror upgrade and laser lens replacement.”
- “High Precision: Experience enhanced precision and efficiency with our high-transmittance co2 laser Mirror. These plane-shaped 25 mm co2 laser mirror boast excellent optical properties, ensuring optimal performance for laser machines with higher power ranging from 60W to 400W. In addition, their superb coating art, precision slicing, polishing, and grinding guarantee a long working life and high working efficiency.”
- “Superior Efficiency: Upgrade your laser machine with our si gold plated mirror for co2 laser K40 laser, these mirrors ensure stability and precision in every operation. Experience superior performance and longevity with our 25mm laser mirror today.”
- “High Reflectivity: Cloudray laser si mirror are specially provide excellent optical properties and a transmittance of over 99.2% reflectivity of infrared light at the critical 10600nm wavelength, minimizing loss of power in transmission from your tube to the workbed,ensuring optimal performance with your CO2 laser machine.”
- “Wide Compatibility: Upgrade your k40 mirror,laser cutter mirrors,lens laser with Cloudray laser si-mirror.This set of high-transmittance laser mirrors also offers superior heat resistance to work with a wide range of laser engravers, etchers, markers, and cutters from K40 lasers to powerful 300W industrial engraving equipment.”
What this listing does not tell you
- Optical density. Optical density is how much of the rated wavelength the filter removes, on a logarithmic scale. It only means anything paired with the wavelength it applies to: a high density at the wrong wavelength is protection against light your machine does not emit.
- Certification. A stated standard is a claim someone else can check. It is not a guarantee the product was tested, but its absence means there is nothing to check at all.
It does state rated wavelength, which is more than most of the category manages.
Check your room firstIf this one is not right
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