{"product_id":"knightsbridge-5ft-37w-led-emergency-batten-4000k-white","title":"Knightsbridge 5ft 37W LED Emergency Batten 4000K - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 5ft LED emergency batten is a 1525mm linear ceiling fitting delivering 4290lm through an opal polycarbonate diffuser at 4000K cool white, powered by a 37W integrated LED achieving 148lm\/W efficacy. The emergency function operates in maintained, non-maintained or switched modes, providing 205lm emergency output when mains power fails. The pressed steel housing mounts via rear and end conduit fixings or standard 600mm centres compatible with BESA boxes.\u003c\/p\u003e\n\u003cp\u003eDesigned as a direct replacement for conventional 5ft fluorescent battens in commercial, industrial and public-access spaces requiring emergency lighting compliance, the fitting suits corridors, stairwells, plant rooms, workshops and storage areas. The hinged gear tray opens to reveal push-fit loop-in loop-out terminals, allowing multiple battens to be daisy-chained without junction boxes. The 145° beam angle distributes light evenly across the full length of the fitting, minimising dark patches between multiple battens installed on a grid.\u003c\/p\u003e\n\u003cp\u003eThe white-painted steel body measures 61mm wide by 71mm deep, a low-profile form that fits beneath 2.4m ceilings without dominating sightlines. The opal diffuser hides the LED strip inside and softens the light output to reduce glare in spaces with reflective floors. The Class I earthed construction requires connection to a protective earth conductor, and the IP20 rating limits installation to dry indoor environments only. The L70B50 rating of 50,000 hours predicts the LED will retain 70% of its initial output after approximately 5.7 years of continuous operation.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e1525 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e71 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePressed steel\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\u003eI\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\u003eDiffuser\u003c\/td\u003e\n\u003ctd\u003eOpal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmergency\u003c\/td\u003e\n\u003ctd\u003eMaintained \/ Non-maintained \/ Switched\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\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\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam Angle\u003c\/td\u003e\n\u003ctd\u003e145\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003ctd\u003e4000 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Colour\u003c\/td\u003e\n\u003ctd\u003eCool White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens\u003c\/td\u003e\n\u003ctd\u003e4290 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Light Source only)\u003c\/td\u003e\n\u003ctd\u003e5425 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Em. mode)\u003c\/td\u003e\n\u003ctd\u003e205 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficacy\u003c\/td\u003e\n\u003ctd\u003e148.41 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\u003eDriver Type\u003c\/td\u003e\n\u003ctd\u003eConstant Current\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\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_3109027_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_800030.pdf\" target=\"_self\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat emergency modes are supported?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe batten operates in maintained (always on), non-maintained (only on during power failure), or switched modes. In emergency mode it delivers 205lm for the duration of the battery charge. Configuration is set during installation via the control gear inside the hinged tray.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it mounted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe batten mounts via rear and end conduit fixings, or using the standard 600mm centre spacing compatible with BESA boxes. The hinged gear tray opens to reveal push-fit terminals for loop-in loop-out connection, allowing multiple battens to be wired in series without additional junction boxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in damp or outdoor environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating limits installation to dry indoor environments only. For damp rooms, plant rooms with condensation, or outdoor covered areas, an IP65-rated batten is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the expected lifespan?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe LED has an L70B50 rating of 50,000 hours, meaning it will retain 70% of its initial output after approximately 5.7 years of continuous operation. The 5-year warranty excludes the emergency battery, which will require replacement at intervals depending on usage and temperature.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293742260491,"sku":"BATS5EM","price":46.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/244434_33bd5489-e883-4a91-b813-cc30bce1dcfc.jpg?v=1714663578","url":"https:\/\/niori.co.uk\/products\/knightsbridge-5ft-37w-led-emergency-batten-4000k-white","provider":"Niori","version":"1.0","type":"link"}