{"product_id":"1-way-10-150w-trailing-edge-pull-cord-dimmer-switch-black-nickel","title":"1-Way 10-150W Trailing Edge Pull Cord Dimmer Switch - Black Nickel","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 8301BN is a 1-way trailing edge pull cord dimmer switch rated for 10-150W incandescent loads or 5-100W LED loads, housed in a 75mm diameter black nickel ceiling rose. The trailing edge dimming technology provides smoother control for both modern LED and older incandescent bulbs, with an integrated potentiometer allowing the dimming curve to be fine-tuned during installation to eliminate flicker with specific lamp models.\u003c\/p\u003e\n\u003cp\u003eDesigned for ceiling mounting in bedrooms, home offices and any space where wall access is impractical or where a pull cord fits the room's design, the switch operates on a simple pull mechanism: one pull turns the light on or off, while holding the cord dims the light up or down. The 1.5m black fabric-covered cable gives reach from standard ceiling heights, and the cable length can be shortened during fitting if needed.\u003c\/p\u003e\n\u003cp\u003eThe black nickel finish is a dark gunmetal tone that sits between matt black and polished chrome, providing a contemporary alternative to standard white or brass ceiling roses. The 75mm diameter rose and 36mm depth accommodate standard ceiling wiring, and the Class II double-insulated construction removes the need for an earth connection. The switch carries an IP20 rating for dry indoor use and is certified to EN 60669-2.\u003c\/p\u003e\n\u003cp\u003eCompatibility with specific LED lamps varies by manufacturer — always verify dimmer compatibility with the lamp maker before installation, particularly with low-wattage LEDs under 10W where minimum load requirements can cause issues.\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\u003e75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePremium grade steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction 2\u003c\/td\u003e\n\u003ctd\u003e\u0026amp; ABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack Nickel\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\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2\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\/products_4959631_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_1363688.pdf\" target=\"_self\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between trailing edge and leading edge dimming?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTrailing edge dimming is designed for LED and low-voltage loads and typically produces less electrical noise and smoother dimming at the low end of the range compared to leading edge dimmers, which were designed for incandescent bulbs. This Knightsbridge switch uses trailing edge technology, making it more suitable for modern LED lamps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I adjust the dimming curve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe integrated potentiometer is accessed inside the ceiling rose during installation. Turn the adjustment screw clockwise or anti-clockwise to change the minimum dim level, which can eliminate flicker or buzzing with specific LED lamps. Consult the product manual for the exact adjustment procedure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in a bathroom?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating limits the switch to dry indoor locations only. It cannot be installed within zones 0, 1 or 2 of a bathroom as defined by BS 7671 wiring regulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if my LED bulb flickers on this dimmer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlicker typically occurs when the LED's minimum load is below the dimmer's minimum output, or when the lamp is not designed for dimming. First verify the LED is marked as dimmable. If flicker persists, adjust the potentiometer inside the ceiling rose to raise the minimum dim level, or try a different LED model from the lamp manufacturer's list of compatible dimmers.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293653426443,"sku":"8301BN","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1068346_2288c5c7-8528-48bd-bc51-ac13aad8f85a.jpg?v=1714661912","url":"https:\/\/niori.co.uk\/products\/1-way-10-150w-trailing-edge-pull-cord-dimmer-switch-black-nickel","provider":"Niori","version":"1.0","type":"link"}