{"product_id":"eveready-4-2w-gu10-led-bulb-warm-white-3000k-non-dimmable-2-pack","title":"Eveready 4.2W GU10 LED Bulb Warm White 3000K Non-Dimmable - 2 Pack","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Eveready GU10 is a 4.2W LED spotlight bulb delivering 320 lumens at 3000K warm white, supplied as a twin pack. Each bulb uses a standard GU10 twist-and-lock base and operates on 220-240V mains voltage, making it a direct retrofit replacement for 50W halogen GU10 spotlights in ceiling downlights, track lighting and recessed fittings across UK homes and commercial interiors.\u003c\/p\u003e\n\u003cp\u003eDesigned for fixed-output applications where dimming is not required, the bulbs suit kitchens, hallways, bathrooms (check IP rating for zones), retail displays and office spaces needing consistent warm-toned accent or task lighting. The 110-degree beam angle provides broader coverage than traditional 38-degree halogen spots, reducing the number of fittings needed to light a given area. Installation takes seconds — twist out the old halogen, twist in the GU10 LED, no rewiring or transformer changes required.\u003c\/p\u003e\n\u003cp\u003eEach bulb measures 57mm height by 50mm diameter and weighs 40g, fitting flush into standard downlight housings without protruding below the ceiling line. The 3000K colour temperature produces a warm white tone comparable to traditional incandescent and halogen lighting, avoiding the cooler blue-white cast of higher-Kelvin LEDs. At 4.2W per bulb, a pair consumes under 9W compared to 100W for the equivalent halogen pair, cutting running costs by approximately 90% over the bulb's rated lifespan.\u003c\/p\u003e\n\u003cp\u003eThe bulbs carry an Energy Rating of G under the updated EU energy label scale introduced in 2021, reflecting the stricter benchmarks applied to all lighting products. While the label rating is lower than older A-rated products, the actual energy saving versus halogen remains substantial. The twin-pack format provides a spare bulb for multi-spotlight installations or staged replacement as existing halogens fail.\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\u003e0.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth (mm)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight (mm)\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth (mm)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e4.7W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumen\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Shape\u003c\/td\u003e\n\u003ctd\u003eSpot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLamp Base\u003c\/td\u003e\n\u003ctd\u003eGU10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Rating\u003c\/td\u003e\n\u003ctd\u003eG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKelvin\u003c\/td\u003e\n\u003ctd\u003e3,000K\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\u003e110\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 these bulbs be used with dimmer switches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. These GU10 LEDs are non-dimmable and must only be used on standard on\/off switches. Installing them on a dimmer circuit may cause flickering, buzzing or premature failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these replace 50W halogen bulbs directly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Each 4.2W LED provides comparable light output to a 50W halogen GU10 while using approximately 90% less energy. The GU10 base fits directly into existing halogen downlight fittings without modification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the beam angle and how does it compare to halogen?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 110-degree beam angle is significantly wider than the typical 38-degree beam of traditional halogen GU10 spots, providing broader wash coverage. This makes them better suited to general room lighting rather than narrow accent spotlighting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the energy rating G if it's LED?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe EU energy label scale was updated in 2021 with stricter benchmarks. Most LED bulbs now fall into E-G ratings under the new scale, but they still deliver the same energy savings versus halogen and incandescent bulbs as before the label change.\u003c\/p\u003e","brand":"Eveready","offers":[{"title":"Default Title","offer_id":46074273693963,"sku":"S15291","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S15291_46cdeb3a-6634-4f9b-92d8-c47c5ee2dddc.jpg?v=1730312744","url":"https:\/\/niori.co.uk\/products\/eveready-4-2w-gu10-led-bulb-warm-white-3000k-non-dimmable-2-pack","provider":"Niori","version":"1.0","type":"link"}