{"product_id":"energizer-4-2w-dimmable-led-golf-ball-bulb-e27-cool-white-4000k","title":"Energizer 4.2W Dimmable LED Golf Ball Bulb E27 - Cool White 4000K","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Energizer LED Golf Ball is a compact 4.2W dimmable bulb with an E27 Edison screw base, delivering 470 lumens of 4000K cool white light. The golf ball shape measures approximately 45mm in diameter, making it smaller than standard GLS bulbs and suited to fittings where a full-sized bulb would protrude or overwhelm the fixture.\u003c\/p\u003e\n\u003cp\u003eDesigned as a direct replacement for traditional 40W incandescent golf ball bulbs, the 4.2W LED reduces energy consumption by around 90% while maintaining comparable output. The 4000K colour temperature sits between warm white (2700K-3000K) and daylight (5000K-6500K), producing a neutral, slightly cool tone that works well in kitchens, bathrooms, utility rooms and workspaces where clarity is more useful than warmth. The dimmable function pairs with most leading-edge and trailing-edge dimmer switches, allowing brightness adjustment from full 470 lumens down to a lower ambient level.\u003c\/p\u003e\n\u003cp\u003eThe frosted finish diffuses light evenly without the point-source glare of clear LED filaments, making the bulb comfortable to view when used in open fittings like wall sconces, pendant shades or bathroom mirror lights. The E27 base fits standard UK and European Edison screw lamp holders, and the bulb carries an E energy rating under current UK regulations. Energizer rates the lifespan at approximately 15,000 hours, equivalent to around 13 years of typical household use at 3 hours per day.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\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\u003eGolf\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 (New Regs)\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\u003eYes\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\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bulb compatible with dimmer switches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The bulb is rated as dimmable and works with most leading-edge and trailing-edge dimmer switches. Performance varies depending on the dimmer model, so if you experience flickering or a limited dimming range, consult the dimmer manufacturer's LED compatibility list.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is 4000K cool white used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e4000K is a neutral to cool white light, sitting between warm white (2700K-3000K) and daylight (5000K-6500K). It provides clear, focused illumination without the yellow cast of warm white, making it well-suited to kitchens, bathrooms, offices and task lighting where visibility matters more than ambience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size is a golf ball bulb?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGolf ball bulbs are typically around 45mm in diameter, compared to 60mm for a standard GLS bulb. This smaller size suits compact fittings such as wall sconces, bathroom mirror lights and small pendant shades where a full-sized bulb would be too large.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the bulb last?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnergizer rates this LED at approximately 15,000 hours, which equates to around 13 years of typical household use at 3 hours per day. Actual lifespan depends on usage patterns, operating temperature and whether the bulb is frequently switched on and off.\u003c\/p\u003e","brand":"Energizer","offers":[{"title":"Default Title","offer_id":51783313621259,"sku":"S30635","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/S30635_1_3f83ded7-fd89-4cb0-9af3-f62ddf1962c6.jpg?v=1750876498","url":"https:\/\/niori.co.uk\/products\/energizer-4-2w-dimmable-led-golf-ball-bulb-e27-cool-white-4000k","provider":"Niori","version":"1.0","type":"link"}