This bulk-buy value pack of 5x Crompton Lamps 4.2W LED candle light bulbs with SBC-B15d small bayonet (15mm) fittings are direct replacements for traditional 40W light bulbs, but have the potential to reduce your home lighting bills and reduce the frequency of needing to replace your light bulbs. LED filament technology is much more energy efficient than traditional light bulb technologies such as incandescent bulbs. This not only helps you save on your energy bills but also helps the environment too. Whereas a traditional light bulb would use 40W to produce 470lm, this LED version uses just 4.2W equating to an energy-efficiency of 112lm/W. The beauty of LED filament light bulbs is truly enchanting, seamlessly blending vintage aesthetics with cutting-edge technology. The LED filaments within these bulbs mimic the classic look of incandescent bulbs, casting a glow that exudes nostalgia. Furthermore, LED filament bulbs extend beyond their aesthetic appeal by providing both energy-efficient operation and long-lasting durability, thus positioning them as a sustainable and environmentally friendly lighting choice. With a long life of 15000-hours, this LED candle light bulb boasts an incredible 8.2-year lifespan if used for 5-hours a day. These light bulbs don’t need to be replaced as often which results in less money spent on replacement bulbs, and less time spent replacing them, too. Cool white (4000K) bulbs produce a cooler, crisp light and are well suited to more stimulating environments. This makes them great in kitchens, workplaces and is also excellent for bathrooms as there is no colour cast; so applying makeup is much easier. With a size of 35mm diameter with 95mm height, this LED candle light bulb will retrofit directly to any existing SBC-B15d fixture; whether that be smaller domestic light fittings such as chandeliers or wall sconces or up to large-scale commercial installations.