{"product_id":"knightsbridge-6ft-27-52w-cct-adjustable-led-emergency-batten-white","title":"Knightsbridge 6ft 27\/52W CCT Adjustable LED Emergency Batten - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 6ft LED emergency batten provides adjustable colour temperature (3000K, 4000K or 5700K) and dual wattage output (27W or 52W) behind a single 1790mm white steel housing with an opal polycarbonate diffuser. The integrated lithium battery provides a minimum 3-hour emergency duration in maintained, non-maintained or switched modes, making this batten suitable for commercial and public building installations requiring BS 5266 compliance.\u003c\/p\u003e\n\u003cp\u003eDesigned as a direct replacement for twin 5ft or 6ft fluorescent tube fittings, the batten includes rear and end conduit fixing points and sits on standard 600mm centres or BESA boxes. The hinged gear tray and push-fit loop-in loop-out terminals allow single-step installation without needing a terminal block or separate wiring chamber. At 52W the batten delivers 7,520lm at 4000K with an efficacy of 165.5 lm\/W, providing output comparable to 2 x 58W fluorescent tubes at half the running cost.\u003c\/p\u003e\n\u003cp\u003eThe pressed steel housing measures 1790mm long by 61mm wide with a 71mm projection from the ceiling or wall. The opal diffuser produces an even 145-degree beam spread without visible LED hotspots. The CCT and wattage switches are accessible inside the housing, allowing adjustment on-site to match existing lighting or room-specific requirements. The L70B50 rating of 60,000 hours at 4000K equates to approximately 13 years of continuous operation before the LED degrades to 70% of initial brightness.\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating limits the batten to dry internal locations such as offices, corridors, warehouses, stairwells and workshops. The 5-year warranty covers the LED driver and light source (battery excluded). The Class I construction requires an earth connection during installation.\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\u003e1790 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\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\u003e60000\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\u003e3000\/4000\/5700 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\u003e3750\/4170\/4070, 6590\/7520\/7150 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Light Source only)\u003c\/td\u003e\n\u003ctd\u003e8410 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Em. mode)\u003c\/td\u003e\n\u003ctd\u003e310 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e27\/52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficacy\u003c\/td\u003e\n\u003ctd\u003e165.5 lm\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCRI\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;85\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_5734811_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the CCT and wattage adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTwo DIP switches are accessible inside the housing after removing the diffuser. One switch sets the colour temperature (3000K warm white, 4000K neutral white or 5700K daylight), the other sets the wattage output (27W or 52W). Adjustment takes seconds and does not require re-wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between maintained, non-maintained and switched emergency modes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaintained mode keeps the emergency light on continuously and switches to battery during mains failure. Non-maintained mode keeps the emergency light off during normal operation and switches it on during mains failure. Switched mode allows the fitting to be controlled by a wall switch during normal operation, switching to battery on mains failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this replace a twin 5ft or 6ft fluorescent fitting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The batten mounts on standard 600mm centres and includes conduit fixing points that match most commercial fluorescent fittings. At 52W and 4000K the output of 7,520lm is comparable to 2 x 58W fluorescent tubes, with lower running costs and longer life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the emergency battery last?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe lithium battery provides a minimum 3-hour emergency duration at 310lm output. The battery is not covered by the 5-year warranty and will require replacement after approximately 3-4 years depending on discharge cycles.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293687570699,"sku":"BATSCWEM6","price":57.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1383566_1a0f40ab-4424-4220-80ba-8f55c6533739.jpg?v=1714662618","url":"https:\/\/niori.co.uk\/products\/knightsbridge-6ft-27-52w-cct-adjustable-led-emergency-batten-white","provider":"Niori","version":"1.0","type":"link"}