{"product_id":"knightsbridge-5ft-33w-modular-led-batten-4000k-white","title":"Knightsbridge 5ft 33W Modular LED Batten 4000K - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 5ft modular LED batten is a 1525mm linear fitting with an integrated 33W LED delivering 4600lm at 4000K cool white. The pressed steel body is finished in white with an opal polycarbonate diffuser that distributes light across a 120-degree beam angle. The batten accepts modular plug-in accessories including emergency backup modules (MODEMKIT) and microwave presence sensors (MODMWS), allowing the fitting to be specified for different functional requirements without changing the base unit.\u003c\/p\u003e\n\u003cp\u003eDesigned for utility, industrial and commercial installations where bright, consistent overhead light is required without decorative features, the batten suits plant rooms, stairwells, warehouses, back-of-house areas, garages, workshops and storage facilities. The IP20 rating limits use to dry internal environments. The fitting mounts to standard BESA fixings at 600mm centres, with rear and end conduit entry points for cable runs and a hinged gear tray that opens for access to wiring without removing the batten from the ceiling.\u003c\/p\u003e\n\u003cp\u003eThe integrated LED operates at 152lm\/W source efficacy, achieving an overall 140lm\/W system efficacy after diffuser losses. The L70B50 rating of 100,000 hours indicates the point at which 50% of a sample group will have dropped to 70% of initial output — approximately 11.4 years of continuous use or 22+ years at 12 hours per day. The constant-current driver operates on 230V 50Hz mains and the batten is Class I, requiring an earth connection. The non-dimmable driver delivers consistent output without flicker.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e1525mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e61mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePressed steel \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\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\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\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\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\u003e100000\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\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCCT\u003c\/td\u003e\n\u003ctd\u003e4000K\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\u003e4600lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumens (Light source only)\u003c\/td\u003e\n\u003ctd\u003e5100lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e33W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficacy (Light source)\u003c\/td\u003e\n\u003ctd\u003e152lm\/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 Year Guarantee\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-BATM5.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan this batten be fitted with emergency backup?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The modular design accepts the Knightsbridge MODEMKIT emergency module, which plugs into the batten and provides backup illumination during mains failure. The emergency module is sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between 4600lm and 5100lm in the specification?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e5100lm is the raw LED output at the source. 4600lm is the output after losses through the opal diffuser and internal reflector geometry — this is the light that actually exits the fitting and illuminates the space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be surface-mounted to a ceiling with no BESA point?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The batten has pre-drilled mounting holes at 600mm centres and can be screwed directly to a ceiling joist, concrete soffit or plasterboard with appropriate fixings. BESA compatibility is an option, not a requirement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the batten suitable for cold or damp environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating limits use to dry internal environments with normal domestic or commercial humidity levels. It is not suitable for unheated outbuildings with condensation, damp cellars, or outdoor canopies. For those applications, an IP65-rated batten would be required.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":51391665307915,"sku":"BATM5","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1951676_0fde7b69-e53b-4f6b-8902-2e24d177e37e.jpg?v=1747063291","url":"https:\/\/niori.co.uk\/products\/knightsbridge-5ft-33w-modular-led-batten-4000k-white","provider":"Niori","version":"1.0","type":"link"}