{"product_id":"energizer-4-7w-gu10-led-bulb-4000k-cool-white-non-dimmable-350lm-50w-replacement","title":"Energizer 4.7W GU10 LED Bulb 4000K Cool White Non-Dimmable - 350lm 50W Replacement","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Energizer 4.7W GU10 LED bulb delivers 350 lumens of 4000K cool white light through a 36° beam angle, replacing 50W halogen spotlights while consuming 90% less energy. The GU10 twist-and-lock base fits standard UK downlights and spotlight fittings without requiring additional hardware or wiring changes.\u003c\/p\u003e\n\u003cp\u003eDesigned for task-oriented spaces where clarity matters — kitchens, bathrooms, home offices, workshops — the 4000K colour temperature sits between warm white and daylight, providing crisp illumination without the clinical harshness of higher-temperature LEDs. The 36° beam angle produces a focused pool of light suited to worktop lighting, bathroom mirrors, and recessed downlights rather than wide ambient wash. The bulb is rated for a 15-year lifespan based on 3 hours daily use, reducing replacement frequency and maintenance costs.\u003c\/p\u003e\n\u003cp\u003eThe Energizer GU10 is non-dimmable and should not be paired with dimmer switches, as this can cause flickering or early failure. The bulb measures 50mm diameter by 54mm height, matching the footprint of standard halogen GU10s, so it sits flush in existing fixtures without visible projection. The F energy rating reflects the 2021 EU energy label rescaling — this bulb still provides significant savings over halogen equivalents.\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\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\u003e4.7W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLumen\u003c\/td\u003e\n\u003ctd\u003e350\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\u003eF\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\u003eWhat does 4000K cool white look like?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4000K sits between warm white (2700K-3000K) and daylight (5000K-6500K), producing a crisp, neutral white light with minimal yellow or blue tint. It provides clarity for task work without the clinical feel of higher-temperature LEDs, making it common in commercial kitchens, offices and modern bathrooms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this bulb be used with a dimmer switch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This is a non-dimmable LED. Connecting it to a dimmer switch will cause flickering, buzzing, or early failure. If dimming is required, use a dimmable GU10 LED instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat beam angle is 36° suitable for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 36° beam angle produces a focused pool of light rather than wide ambient wash. It suits recessed downlights, worktop task lighting, bathroom mirror illumination, and display lighting where concentrated light is needed on a specific area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 15-year lifespan rating work?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 15-year claim assumes 3 hours of daily use (approximately 16,425 hours total). Actual lifespan varies depending on usage patterns, ambient temperature and fixture ventilation. LED bulbs in enclosed fittings or high-heat environments may have shorter lifespans than those in open fixtures.\u003c\/p\u003e","brand":"Energizer","offers":[{"title":"Default Title","offer_id":46075316764939,"sku":"S9409","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S9409_1_eb318d89-aa7b-4b60-bac1-134fe1a7d2ac.jpg?v=1730318957","url":"https:\/\/niori.co.uk\/products\/energizer-4-7w-gu10-led-bulb-4000k-cool-white-non-dimmable-350lm-50w-replacement","provider":"Niori","version":"1.0","type":"link"}