{"product_id":"energizer-3-6w-gu10-led-bulb-non-dimmable-cool-white-4000k","title":"Energizer 3.6W GU10 LED Bulb Non-Dimmable - Cool White 4000K","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Energizer 3.6W GU10 is a non-dimmable LED spotlight bulb delivering 345 lumens through a 36° beam angle at 4000K cool white. The GU10 twist-and-lock base fits standard UK mains-voltage spotlight fittings without requiring a transformer, making it a direct replacement for 35W halogen GU10s in downlights, track lighting and recessed ceiling fixtures.\u003c\/p\u003e\n\u003cp\u003eDesigned for task lighting in kitchens, bathrooms, home offices and commercial workspaces, the 4000K colour temperature sits between warm white (2700K-3000K) and daylight (5000K-6500K), producing a neutral white that renders colours accurately without the yellow cast of warmer bulbs or the clinical blue tone of daylight. The narrow 36° beam concentrates light into a defined pool rather than spreading it wide, making the bulb well-suited to spotlighting work surfaces, sinks, countertops and desk areas.\u003c\/p\u003e\n\u003cp\u003eThe bulb measures 50mm diameter by 54mm height, matching the form factor of traditional halogen GU10s so it sits flush in most downlight housings. At 3.6W it draws approximately 90% less power than the 35W halogen equivalent it replaces, with Energizer rating the LED lifespan at 15 years under typical domestic use patterns (approximately 15,000 hours). The bulb is non-dimmable and should not be paired with dimmer switches.\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\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight (mm)\u003c\/td\u003e\n\u003ctd\u003e54\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\u003e3.6W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumen\u003c\/td\u003e\n\u003ctd\u003e345\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\u003eE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKelvin\u003c\/td\u003e\n\u003ctd\u003e4,000K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour Temperature\u003c\/td\u003e\n\u003ctd\u003eCool 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\u003e36\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\u003eIs this bulb dimmable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The Energizer 3.6W GU10 is non-dimmable and must not be used with dimmer switches. Installing it on a dimmed circuit may cause flickering, buzzing or premature failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between 4000K and 3000K?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4000K cool white produces a neutral white light without the warm yellow tone of 3000K. It renders colours more accurately and is typically preferred in kitchens, bathrooms and task-focused spaces where clarity matters. 3000K warm white suits living rooms and bedrooms where a softer, more relaxing light is wanted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need a transformer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. GU10 bulbs run directly on 230V mains voltage. They twist and lock into the fitting without requiring a transformer, unlike GU5.3 and MR16 low-voltage equivalents.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 36° beam angle affect light spread?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 36° beam angle produces a concentrated pool of light directly below the bulb, ideal for spotlighting specific areas like worktops or sinks. Wider beam angles (60°+) spread light more evenly across a room but reduce intensity at the centre of the pool.\u003c\/p\u003e","brand":"Energizer","offers":[{"title":"Default Title","offer_id":46075283669259,"sku":"S8822","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S8822_1.1_25208504-e1b7-4f50-815c-d6712b0c5c97.jpg?v=1730318668","url":"https:\/\/niori.co.uk\/products\/energizer-3-6w-gu10-led-bulb-non-dimmable-cool-white-4000k","provider":"Niori","version":"1.0","type":"link"}