{"product_id":"energizer-4-2w-led-gls-bulb-e27-6500k-daylight-non-dimmable-470lm","title":"Energizer 4.2W LED GLS Bulb E27 6500K Daylight - Non-Dimmable 470lm","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Energizer LED GLS is a 4.2W bulb with an E27 screw base, delivering 470 lumens of 6500K daylight-spectrum light. The GLS (General Lighting Service) shape is the classic A-line bulb profile that fits most standard table lamps, ceiling pendants and wall fittings designed for traditional incandescent bulbs.\u003c\/p\u003e\n\u003cp\u003eSuited to kitchens, home offices, workshops and utility rooms where clear visibility matters, the 6500K colour temperature produces a cool, neutral white light that closely matches midday outdoor conditions. This spectrum aids concentration and colour accuracy for tasks like reading small print, detail work, and food preparation. The bulb replaces a 40W incandescent while consuming 4.2W, cutting energy use by approximately 90% for the same lumen output.\u003c\/p\u003e\n\u003cp\u003eThe bulb measures 60mm diameter by 128mm height, fitting within the standard GLS envelope dimensions. The E27 base is the larger of the two UK Edison screw standards and fits any fixture marked ES or E27. Energizer rates the bulb for up to 15 years of typical domestic use (approximately 15,000 hours at 3 hours per day), meaning fewer replacements compared to traditional incandescent or halogen bulbs. The bulb is non-dimmable and should only be used on standard on\/off circuits.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\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\u003e128\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\u003e470lm\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\u003eE27\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\u003e6,500K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour Temperature\u003c\/td\u003e\n\u003ctd\u003eDaylight\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\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 bulb is non-dimmable and should only be used on standard on\/off circuits. Using it with a dimmer switch may cause flickering, premature failure, or damage to the dimmer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is 6500K daylight suitable for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e6500K produces a cool, neutral white light that matches midday outdoor conditions. It aids concentration and colour accuracy, making it useful for reading, detail work, kitchens, workshops and home offices. For living rooms and bedrooms, most people prefer warmer temperatures like 2700K-3000K.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this compare to a 40W incandescent bulb?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis 4.2W LED produces 470 lumens, roughly equivalent to a 40W incandescent bulb. The LED consumes approximately 90% less energy and lasts significantly longer (15,000 hours vs approximately 1,000 hours for incandescent).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my existing lamp?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf your lamp or fitting has an E27 (ES) screw base and accepts a standard GLS bulb shape (60mm diameter, 128mm height), this bulb will fit. Check the fitting's maximum wattage rating, though at 4.2W this bulb is well within the limits of most fixtures.\u003c\/p\u003e","brand":"Energizer","offers":[{"title":"Default Title","offer_id":46075003011339,"sku":"S29777","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S29777_1_b5580f69-b34f-4321-a837-d3d13f8fe870.jpg?v=1730316609","url":"https:\/\/niori.co.uk\/products\/energizer-4-2w-led-gls-bulb-e27-6500k-daylight-non-dimmable-470lm","provider":"Niori","version":"1.0","type":"link"}