{"product_id":"seren-dimmable-led-recessed-downlight-15-20-25w-switchable-cct-white","title":"Seren Dimmable LED Recessed Downlight 15\/20\/25W Switchable CCT - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge Seren is a recessed LED downlight with three switchable wattage settings (15W, 20W, 25W) and three selectable colour temperatures (3000K warm white, 4000K neutral white, 5000K cool white). A DIP switch on the rear of the driver allows the installer to select the required output and colour temperature before ceiling installation, making it possible to standardise on a single product across different zones within the same project.\u003c\/p\u003e\n\u003cp\u003eDesigned for commercial applications including offices, retail spaces, hotels and education facilities, the Seren fits a 170mm ceiling cut-out and requires a minimum 100mm ceiling void to accommodate the 69.5mm recessed depth and driver assembly. The fitting uses a die-cast aluminium heat sink with white powder-coated finish and an opal polycarbonate diffuser that produces a 110-degree beam angle, suitable for general area lighting rather than accent or task work. The Class II double-insulated construction means no earth connection is required during installation.\u003c\/p\u003e\n\u003cp\u003eThe 0-10V dimming protocol allows the Seren to integrate with most commercial lighting control systems, though compatibility should be confirmed with the specific dimmer model before installation. Plug-and-play connectors on the driver simplify first-fix wiring and allow the fitting to be removed for ceiling maintenance without needing to re-wire. The fitting carries an IP40 rating from below (IP20 from above), making it suitable for dry interior environments but not bathrooms or wet areas. Knightsbridge rates the LED module at 50,000 hours L70B50 lifespan and backs the fitting with a five-year warranty.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e192 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e69.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Void\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Diameter\u003c\/td\u003e\n\u003ctd\u003e170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction 2\u003c\/td\u003e\n\u003ctd\u003e\u0026amp; polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP40 (IP20 from above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e230V 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiffuser\u003c\/td\u003e\n\u003ctd\u003eOpal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Technology\u003c\/td\u003e\n\u003ctd\u003eSMD LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimmable\u003c\/td\u003e\n\u003ctd\u003eYes*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL70B50\u003c\/td\u003e\n\u003ctd\u003e50000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Rating (Class) post 2021 SLR\u003c\/td\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam Angle\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003ctd\u003e3000\/4000\/5000 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Colour\u003c\/td\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens\u003c\/td\u003e\n\u003ctd\u003e1675\/1750\/1770\/2180\/2325\/2335\/3085\/3305\/3290 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Light Source only)\u003c\/td\u003e\n\u003ctd\u003e4060 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e15 \/ 20 \/ 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficacy\u003c\/td\u003e\n\u003ctd\u003e168.56 lm\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCRI\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_6284481_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_1815758.pdf\" target=\"_self\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I change the wattage and colour temperature?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe wattage (15W\/20W\/25W) and CCT (3000K\/4000K\/5000K) are selected using DIP switches on the driver before the fitting is installed in the ceiling. Once the ceiling is closed up, these settings cannot be changed without removing the fitting to access the driver.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ceiling void depth is required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA minimum 100mm ceiling void is required to accommodate the 69.5mm recessed depth of the fitting plus the driver assembly and wiring connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Seren suitable for bathroom installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP40 rating (IP20 from above) makes the Seren suitable for dry interior commercial spaces only. It does not meet the IP rating requirements for bathroom zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat dimming protocol does it use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Seren uses 0-10V dimming protocol. Check compatibility with your specific dimmer or lighting control system before installation, as not all 0-10V dimmers behave identically at low dim levels.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293725122827,"sku":"SER1525AD","price":35.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1672878_d26dc5f7-f7da-4de2-aafd-3c0f57fb8095.jpg?v=1714663318","url":"https:\/\/niori.co.uk\/products\/seren-dimmable-led-recessed-downlight-15-20-25w-switchable-cct-white","provider":"Niori","version":"1.0","type":"link"}