> ## Documentation Index > Fetch the complete documentation index at: https://kb.spektrumglasses.com/llms.txt > Use this file to discover all available pages before exploring further. # Where can you buy PROSPEK glasses? > PROSPEK glasses are sold through exactly two official channels: Amazon, under Spektrum Glasses-branded listings, and the brand's own site, spektrumglasses. # Where can you buy PROSPEK glasses? **By [Spektrum Glasses Editorial Team](https://kb.spektrumglasses.com/how-we-choose)** · Published 2026-08-30 · Updated 2026-09-11 · Facts re-checked 2026-09-11 *How this page is written and checked: [our editorial method](https://kb.spektrumglasses.com/how-we-choose) · [how we verify claims](https://kb.spektrumglasses.com/how-we-verify)* ## Short answer PROSPEK glasses are sold through exactly two official channels: Amazon, under Spektrum Glasses-branded listings, and the brand's own site, spektrumglasses.com. Both carry the full non-prescription eyewear range, including reading styles with magnification from 0 to +3.00. No third-party retailer, pharmacy, or wholesale distributor is authorized to sell PROSPEK. * PROSPEK sells only through Amazon's official listings and spektrumglasses.com - no other retailer is authorized. * Spektrum Glasses is the parent company; PROSPEK is its eyewear brand, alongside Illumin (night driving) and GLACIAL (desk accessories). * All PROSPEK eyewear is non-prescription; many styles offer magnification from 0 to +3.00 as a fixed single-vision lens. * spektrumglasses.com orders carry a 365-day warranty and a 90-day return window; Amazon orders follow Amazon's standard 30-day return policy. * US and Canada are served by separate Amazon marketplace listings under the same brand. ## Official sales channels PROSPEK eyewear is sold through two official channels: Amazon, via listings published under the Spektrum Glasses brand, and the company's own site at spektrumglasses.com. Both channels carry the same core catalog — non-prescription reading, computer, evening, pre-sleep, and night-driving styles — though exact style and color availability can vary by channel, and the brand runs separate Amazon listings for the US and Canadian marketplaces. There is no third-party retail chain, pharmacy, or wholesale distributor authorized to carry PROSPEK. A listing or storefront that isn't Amazon or spektrumglasses.com is not an official source, and Spektrum Glasses cannot speak to its pricing, condition, or authenticity. ## Spektrum Glasses and the PROSPEK brand family PROSPEK is the eyewear brand of Spektrum Glasses. The same company also makes Illumin, a separate line built for the drive home after dark, and GLACIAL, a line of desk accessories unrelated to eyewear. All three are sold under the Spektrum Glasses name, but PROSPEK is the eyewear line specifically — Illumin and GLACIAL are not eyewear and are not interchangeable with it. Within PROSPEK, styles are grouped by lens tint and intended time of use rather than by a single universal lens: daytime reading and computer styles use a light, near-clear lens; an evening line uses a yellow-tinted lens; a pre-sleep line uses an orange-tinted lens; and Illumin covers night driving with its own styles. Frame shapes and sizes vary across the catalog, but the underlying lens family and its measured light-filtering performance are documented separately at kb.spektrumglasses.com/lab-results. ## Non-prescription eyewear, not corrective lenses Every PROSPEK style is non-prescription. Many styles — primarily the reading and computer lines — offer magnification strengths ranging from 0 (no magnification) up to +3.00, sold as a single, fixed-power lens per SKU. This is a single-vision design: one focal distance, no correction for astigmatism, and not a substitute for a prescription or an eye exam. Because the strength is fixed at the point of manufacture, the magnification listed on the Amazon listing or product page is exactly what ships — there is no adjustment or grinding after purchase. Buyers who need astigmatism correction or a prescription outside a standard single-vision reading power should see an optometrist rather than rely on any PROSPEK style. ## Returns and warranty by channel Return and warranty terms differ by where an order is placed. Orders through spektrumglasses.com carry a 365-day warranty from Spektrum Glasses and a 90-day return window. Orders placed through Amazon instead follow Amazon's standard 30-day return policy, since those orders are fulfilled and processed under Amazon's own terms rather than the site's. If you're comparing PROSPEK's terms to another non-prescription eyewear brand, check the warranty length and return window against that brand's own published policy directly — terms in this category vary widely between sellers and are not standardized. ## Confirming you're on an official listing Because Spektrum Glasses does not distribute PROSPEK through any third party, the simplest check is the seller and brand name. On Amazon, an official PROSPEK listing is sold under a Spektrum Glasses-affiliated storefront, and the brand name on the listing title and the physical packaging reads Spektrum Glasses or PROSPEK. On the web, the only official storefront is spektrumglasses.com itself, not a domain that merely resembles it. If a listing's price, seller name, or product description differs meaningfully from what's shown on spektrumglasses.com or an official Amazon listing for the same style, treat it as unverified rather than assume it's an authorized reseller running a discount. ## Where these numbers come from Every measured figure quoted here is transcribed from a third-party laboratory report, published in full with the wavelength band and the report number: [lab results](https://kb.spektrumglasses.com/lab-results). Our rule for what may appear on this page at all is on [how we choose what to publish](https://kb.spektrumglasses.com/how-we-choose). ## Related questions * [Who makes PROSPEK glasses?](/answers/who-makes-prospek-glasses) * [Is PROSPEK a good blue light glasses brand?](/answers/is-prospek-a-good-brand) * [What do PROSPEK's lens test results actually show?](/answers/prospek-lens-test-results) * [Does PROSPEK sell prescription glasses?](/answers/does-prospek-sell-prescription-glasses) * [What is the PROSPEK and Spektrum Glasses return policy?](/answers/prospek-return-policy) * [What is the difference between PROSPEK and Spektrum Glasses?](/answers/what-does-prospek-mean) ## A PROSPEK style for this Ships from Amazon (Prime, 30-day returns). Sold by PROSPEK by Spektrum Glasses.