{"product_id":"knightsbridge-25w-350ma-constant-current-led-driver-dimmable","title":"Knightsbridge 25W 350mA Constant Current LED Driver - Dimmable","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 25W constant current LED driver delivers a fixed 350mA output across a 36-72V range, designed to power LED modules and panels that require constant current rather than constant voltage. The driver accepts 230V 50Hz mains input and converts it to a regulated DC output, preventing current spikes that can degrade LED lifespan.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential, hospitality and commercial lighting installations where the LED fitting requires a separate driver rather than integrated electronics, this unit fits into ceiling voids, behind panels, or inside larger light fittings where a 120mm x 45mm x 28mm footprint can be accommodated. The IP20 rating limits use to dry indoor locations only — not suitable for bathrooms, outdoor or damp environments.\u003c\/p\u003e\n\u003cp\u003eThe driver is dimmable when paired with trailing-edge phase-cut dimmers on the mains side of the installation. Compatibility depends on the specific dimmer model and the total load, so testing the dimmer-driver-LED combination before final installation is recommended. The white polycarbonate housing includes push-fit terminal blocks for mains input and low-voltage output connections, and the Class II double-insulated construction removes the need for an earth connection on the output side.\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\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\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\u003eDimmable\u003c\/td\u003e\n\u003ctd\u003eTrailing-edge only*\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\u003e3\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_3601086_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's the difference between constant current and constant voltage LED drivers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConstant current drivers like this one deliver a fixed current (350mA) while the voltage varies depending on the LED load. Constant voltage drivers deliver a fixed voltage (typically 12V or 24V) while the current varies. LED modules and panels specify which type they need — using the wrong driver type can damage the LEDs or cause premature failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be dimmed with any dimmer switch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe driver is compatible with most trailing-edge phase-cut dimmers on the 230V mains input side. Leading-edge dimmers are not supported. Dimmer compatibility also depends on the total wattage and the specific LED load, so testing the complete circuit before final installation is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can this driver be installed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating limits installation to dry indoor locations only. Typical installation positions include ceiling voids above plasterboard ceilings, behind wall panels, or inside larger light fittings where there is adequate ventilation around the driver. The driver must not be installed in bathrooms, outdoor locations, or anywhere moisture or condensation can reach the unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size void or cavity is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe driver measures 120mm x 45mm x 28mm, so a minimum cavity depth of 35-40mm is recommended to allow for terminal block connections and cable bend radius. The unit should not be enclosed in insulation or sealed enclosures where heat cannot dissipate.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293733839115,"sku":"25W350DA","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/261120_5bd678fd-a132-40c4-b29d-2a0ad9dabf79.jpg?v=1714663474","url":"https:\/\/niori.co.uk\/products\/knightsbridge-25w-350ma-constant-current-led-driver-dimmable","provider":"Niori","version":"1.0","type":"link"}