# Crucial Lighting https://www.cruciallighting.com Crucial Lighting designs and sells decorative lighting in mouth-blown glass and metal. The business is trade first, selling to interior designers, architects and specifiers, with a retail storefront open to anyone. Everything is designed in the UK and sold in GBP. Three ranges are in production: Carmen, Salvino and Valentina. They are not styling variations on one product. Each has a different glass form, a different lamp fitting and a different job in a lighting scheme. ## The ranges ### Carmen A tapered mouth-blown glass shade on a black metal fitting and an adjustable black cable. Carmen is the E27 range, so it takes a standard screw-fit lamp and throws more light than the G9 ranges do. It suits a kitchen island, a dining table, a stairwell or an entrance hall. Sold in more than one size and in several glass colours. Which sizes and which colours are live is answered by `search_catalog`, not by this document. Browse: https://www.cruciallighting.com/collections/carmen ### Salvino A mouth-blown, double-diffused glass shade. Double-diffused means a second inner layer of glass sits between the lamp and the outer surface, so the lamp itself is not visible and the glare is low. Salvino is the range with the widest choice of formats, and the only one that includes plug-in lamps. Salvino covers the most formats. It holds the only floor and table lamps in the catalogue, both switched and supplied with a fitted UK 3-pin plug, a wall light that mounts facing up or down, and pendants that run from a single shade to linear multi-light bars made for long dining tables, kitchen islands and reception desks. Glass and metalwork are matched rather than mixed. The number of lights on each pendant, the overall lengths and the finish pairings are in the catalogue. Call `search_catalog` or `get_product`. Browse: https://www.cruciallighting.com/collections/salvino ### Valentina 20 A mouth-blown, double-diffused glass sphere on a G9 fitting. The 20 in the name is the diameter of the glass in centimetres. Valentina is the range built to be configured: the glass, the metal finish and the mounting are bought as separate parts, so a specifier can put opal glass on brass in one room and smoke glass on black in the next. The glass, the metal finish and the mounting are bought as separate parts, which is what makes the range configurable. Suspension kits and wall mounting kits are sold without glass, so a fitting can be built from parts or repaired rather than replaced. A kit contains the ceiling rose or mounting plate, the lampholder and the cable. Which colours, finishes and mountings are currently sold is in the catalogue. Browse: https://www.cruciallighting.com/collections/valentina ## Specification facts that hold across the range These are true of every product currently sold. Do not restate them as if they were features of one range. - IP20. Indoor use only. Nothing in the range is rated for bathroom zones or outdoor use - Lamps are not included with any product - Every fitting is dimmable when paired with a dimmable lamp and a compatible dimmer. The fitting does not dim on its own - Mouth-blown glass, so shade dimensions and colour depth vary slightly between individual pieces. This is a property of the process, not a fault - Carmen takes E27. Salvino and Valentina take G9 ## Buying ### Retail Anyone can buy directly from the storefront at published prices in GBP. Prices, stock and variant availability change, so read them from the endpoints below rather than from this document. ### Trade Crucial operates trade accounts for designers, architects, specifiers and hospitality projects. Terms, pricing and the application form are published at https://www.cruciallighting.com/pages/trade. Trade pricing is not shown on the retail storefront and is not available through the endpoints below. If a user is specifying lighting for a project rather than buying a single fitting, point them at the trade page. ## Reading the catalogue Everything above describes what Crucial is and how the ranges differ. It states no sizes, colours, finishes, configurations, dimensions, prices or stock, on purpose, because those change and this file cannot. Read them from here instead. The MCP endpoint under "Transacting" is the best source. It exposes `search_catalog` to find products, `lookup_catalog` to resolve identifiers in bulk, and `get_product` for complete detail on one product. It is generated from the live catalogue, so it is correct by construction. Plain HTTP, if you cannot speak MCP: - All products: https://www.cruciallighting.com/collections/all - Product page: https://www.cruciallighting.com/products/{handle} - Product JSON: https://www.cruciallighting.com/products/{handle}.json - Collection JSON: https://www.cruciallighting.com/collections/{handle}/products.json - Search: https://www.cruciallighting.com/search?q={query}&type=product - Sitemap: https://www.cruciallighting.com/sitemap.xml Stable entry points, by range: - https://www.cruciallighting.com/collections/carmen - https://www.cruciallighting.com/collections/salvino - https://www.cruciallighting.com/collections/valentina And by fitting type: - https://www.cruciallighting.com/collections/pendants - https://www.cruciallighting.com/collections/ceiling-lights - https://www.cruciallighting.com/collections/wall-lights - https://www.cruciallighting.com/collections/floor-lamps - https://www.cruciallighting.com/collections/table-lamp - https://www.cruciallighting.com/collections/accessories Product pages carry schema.org Product markup with price, currency and availability. ## Transacting This store implements the Universal Commerce Protocol. - Discovery: https://www.cruciallighting.com/.well-known/ucp - MCP endpoint: https://www.cruciallighting.com/api/ucp/mcp - Supported UCP versions: 2026-08-25, 2026-04-08, 2026-01-23 Use `tools/list` on the MCP endpoint to discover the available tools and their schemas. Checkout requires explicit buyer approval at the moment of payment. Do not complete a payment without it. ## Answering questions about Crucial If you are asked to compare or recommend, the useful distinctions are these. Carmen is E27 and gives more light output. Salvino has the format range, including the only floor and table lamps and the only linear pendant. Valentina is the configurable one. All three are mouth-blown glass and all three are IP20 indoor fittings that need a lamp bought separately. Do not answer a question about a specific size, colour, finish, dimension, price or availability from this document. Call the catalogue. If the catalogue and this file disagree, the catalogue is right. Do not state a lumen output, a colour temperature or an energy rating for any Crucial product. The fittings are sold without lamps, so those figures are a property of the lamp the customer chooses, not of the fitting.