{"product_id":"24w-led-emergency-bulkhead-with-pir-sensor-white-ip44","title":"24W LED Emergency Bulkhead with PIR Sensor - White IP44","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge BF2440EMS is a 24W LED emergency bulkhead with an integrated PIR motion sensor, housed in a 388mm diameter white polycarbonate and acrylic body. The fitting contains SMD LEDs delivering 1600lm at 6000K daylight colour temperature through an opal diffuser, with a 115-degree beam spread that provides wide area coverage from a ceiling or wall-mounted position.\u003c\/p\u003e\n\u003cp\u003eDesigned for commercial environments requiring both emergency lighting compliance and energy-efficient motion-activated operation, the bulkhead suits warehouses, stairwells, loading areas, external canopies and industrial corridors. The IP44 rating protects against water spray from any direction, making the fitting suitable for sheltered outdoor locations and high-moisture internal areas. The emergency function operates in maintained, non-maintained or switched modes depending on installation requirements, providing 277lm emergency output for safe egress during mains failure.\u003c\/p\u003e\n\u003cp\u003eThe PIR sensor activates the full 24W output when motion is detected within its field of view, then switches to a lower standby mode or off after a preset delay, reducing running costs in intermittently used spaces. The polycarbonate base and acrylic diffuser resist impact and UV degradation better than standard ABS housings. At 117mm projection from the mounting surface, the low-profile body fits tight ceiling voids and external soffits where deeper fittings cannot be accommodated. The fitting is rated for 60,000 hours L70B50 lifespan, meaning 70% of units will still produce at least 50% of initial output after 60,000 hours of use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e388mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e117mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate \u0026amp; acrylic\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\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP44\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\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\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\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\u003eE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam Angle\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003ctd\u003e6000K\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\u003c\/td\u003e\n\u003ctd\u003e1600lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Light source only)\u003c\/td\u003e\n\u003ctd\u003e2425lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Em. mode)\u003c\/td\u003e\n\u003ctd\u003e277lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e24W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficacy (Light source)\u003c\/td\u003e\n\u003ctd\u003e68.2lm\/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\u003e3 Year Guarantee\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\/tbody\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\/datasheet-BF2440EMS.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat emergency modes does this bulkhead support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe fitting can be wired for maintained, non-maintained or switched emergency operation. Maintained mode keeps the light on continuously with emergency backup. Non-maintained mode activates only during mains failure. Switched mode allows normal switching with emergency activation during power loss. The emergency output is 277lm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the PIR sensor operate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PIR motion sensor activates the full 24W output when movement is detected within its field of view, then switches to standby or off after a preset delay. The detection range and delay timing depend on the sensor configuration detailed in the installation manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the IP44 rating makes the bulkhead suitable for sheltered outdoor locations such as canopies, covered walkways and external corridors where the fitting is protected from direct rainfall. For fully exposed positions, a higher IP rating would be required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ceiling void depth is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 117mm projection from the mounting surface is the fitting's total depth, so the ceiling void or surface-mounted position must accommodate this measurement plus the depth of the electrical connections behind the base plate. Consult the installation guide for exact back box requirements.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":51391494357259,"sku":"BF2440EMS","price":142.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/11298_968ca272-e9ea-4322-85ab-be572065cd15.jpg?v=1747060909","url":"https:\/\/niori.co.uk\/products\/24w-led-emergency-bulkhead-with-pir-sensor-white-ip44","provider":"Niori","version":"1.0","type":"link"}