{"product_id":"knightsbridge-5w-led-emergency-downlight-5500k-non-maintained-white","title":"Knightsbridge 5W LED Emergency Downlight 5500K Non-Maintained - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge ENM5C is a 5W LED emergency downlight with a built-in lithium iron phosphate (LiFePO4) battery that provides 3 hours of emergency illumination at 460 lumens when mains power fails. The fitting operates in non-maintained mode only, meaning the LED illuminates solely during power cuts and remains off during normal mains operation. The 5500K daylight colour temperature delivers high-contrast visibility for corridors, fire exits and emergency escape routes.\u003c\/p\u003e\n\u003cp\u003eDesigned for commercial and residential projects requiring BS 5266 compliance, the downlight fits a 65mm ceiling cut-out and requires a minimum 110mm void depth above the ceiling to accommodate the recessed body and battery pack. The pre-wired battery pack mounts separately in the void, simplifying installation and future battery replacement without removing the entire fitting. A corridor lens accessory ships in the box, providing directional light distribution for long narrow spaces where standard wide-beam downlights would waste output onto walls.\u003c\/p\u003e\n\u003cp\u003eThe aluminium and polycarbonate construction carries an IP20 rating, making it suitable for internal dry locations but not for bathrooms, kitchens or outdoor use. The white finish integrates into white ceilings without drawing attention during daylight hours. The Class II double-insulated design eliminates the need for an earth connection, reducing installation complexity. The LiFePO4 battery chemistry offers longer cycle life and better thermal stability than older NiCd or NiMH emergency lighting batteries.\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\u003e85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Void\u003c\/td\u003e\n\u003ctd\u003e110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Diameter\u003c\/td\u003e\n\u003ctd\u003e65 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\u003eIP20\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\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e0.35 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmergency\u003c\/td\u003e\n\u003ctd\u003eNon-maintained only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Technology\u003c\/td\u003e\n\u003ctd\u003eLED\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\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003ctd\u003e5500 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Colour\u003c\/td\u003e\n\u003ctd\u003eDaylight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Em. mode)\u003c\/td\u003e\n\u003ctd\u003e460 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCRI\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty Information\u003c\/td\u003e\n\u003ctd\u003e(excluding battery)\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_5580507_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does non-maintained mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNon-maintained emergency lights illuminate only when mains power fails. During normal operation the LED stays off. This differs from maintained emergency lights which can operate as standard lighting and switch to battery during power cuts. Non-maintained fittings are typically used in commercial corridors, stairwells and fire exits where separate task lighting exists.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ceiling void depth is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA minimum 110mm void depth above the ceiling is required to house the 60mm recessed body plus the separate battery pack. Shallower voids will not accommodate the fitting and battery assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the battery last before replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLiFePO4 batteries in emergency lighting typically provide 4-5 years of service life under normal conditions with regular charge-discharge cycles. The battery is pre-wired and can be replaced without removing the downlight from the ceiling. The 3-year warranty excludes the battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the corridor lens for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe corridor lens narrows the beam distribution to direct light along the length of a corridor rather than spreading it wide. This concentrates the 460 lumens where they are needed in narrow hallways and reduces wasted light spill onto walls.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293684097291,"sku":"ENM5C","price":44.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1410946_03afff54-453d-4da8-90da-57351a8a43fb.jpg?v=1714662532","url":"https:\/\/niori.co.uk\/products\/knightsbridge-5w-led-emergency-downlight-5500k-non-maintained-white","provider":"Niori","version":"1.0","type":"link"}