{"product_id":"energizer-4-2w-led-gls-bulb-b22-warm-white-2700k-non-dimmable","title":"Energizer 4.2W LED GLS Bulb B22 Warm White 2700K Non-Dimmable","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Energizer 4.2W LED GLS bulb is a B22 bayonet-cap replacement for traditional 40W incandescent bulbs, producing 470 lumens at 2700K warm white. The GLS (General Lighting Service) shape matches the classic pear-shaped silhouette of traditional bulbs, making it a direct retrofit for table lamps, ceiling pendants, wall lights and bedside fittings without changing the aesthetic of the fixture.\u003c\/p\u003e\n\u003cp\u003eDesigned for general residential and commercial lighting, the bulb operates on 230V mains and consumes 4.2W compared to the 40W of the incandescent it replaces. The 2700K colour temperature produces a warm yellowish-white light similar to traditional tungsten bulbs, suited to living rooms, bedrooms, hallways and hospitality spaces where ambient warmth is preferred over cooler task-oriented light. The 240-degree beam angle spreads light evenly across a room rather than concentrating it in a narrow spot.\u003c\/p\u003e\n\u003cp\u003eThe bulb carries an E energy rating under current UK labelling and is rated for a 15-year average lifespan based on 2.7 hours of daily use. The non-dimmable LED driver inside means the bulb should not be paired with dimmer switches — doing so will cause flickering or early failure. The frosted polycarbonate diffuser softens the LED chips inside and reduces glare when viewed directly. At 60mm diameter and 109mm height, the bulb fits standard lampshade harps and ceiling rose covers without projecting beyond the fitting.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth (mm)\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight (mm)\u003c\/td\u003e\n\u003ctd\u003e109\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth (mm)\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e4.2W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumen\u003c\/td\u003e\n\u003ctd\u003e470\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Shape\u003c\/td\u003e\n\u003ctd\u003eGLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Base\u003c\/td\u003e\n\u003ctd\u003eB22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Rating\u003c\/td\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKelvin\u003c\/td\u003e\n\u003ctd\u003e2,700K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour Temperature\u003c\/td\u003e\n\u003ctd\u003eWarm White\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\u003eBeam Angle\u003c\/td\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED or Halogen\u003c\/td\u003e\n\u003ctd\u003eLED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan this bulb be used with a dimmer switch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This Energizer LED is non-dimmable and must not be paired with dimmer switches. Attempting to dim a non-dimmable LED will cause flickering, buzzing or premature failure. If you need dimmable GLS bulbs, search Niori for dimmable B22 LEDs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fixtures does this bulb fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny fixture with a B22 bayonet cap socket. The 60mm diameter and 109mm height suit standard table lamps, ceiling pendants, wall lights and bedside fittings. Check your lampshade or ceiling cover can accommodate a 109mm bulb height before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does 470 lumens compare to a traditional bulb?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e470 lumens is roughly equivalent to a 40W incandescent bulb. This suits ambient lighting in living rooms, bedrooms and hallways. For task lighting or brighter spaces, consider higher-lumen bulbs — Niori stocks Energizer LEDs up to 1,521 lumens.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat colour is the light?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2700K warm white produces a yellowish-white glow similar to traditional tungsten filament bulbs. It is warmer and more amber-toned than daylight bulbs (5000K-6500K) or cool white bulbs (4000K), making it better suited to residential spaces where a cosy atmosphere is preferred over clinical brightness.\u003c\/p\u003e","brand":"Energizer","offers":[{"title":"Default Title","offer_id":46075297825035,"sku":"S8857","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S8857_1.1_3b9e1648-956d-4411-8faa-3842c4b264bd.jpg?v=1730318735","url":"https:\/\/niori.co.uk\/products\/energizer-4-2w-led-gls-bulb-b22-warm-white-2700k-non-dimmable","provider":"Niori","version":"1.0","type":"link"}