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What is the difference between LEDs and normal light bulbs?14th Mar @ 09:54 LED stands for Light Emitting Diode, and so is not actually called a ‘bulb’ at all. A ‘usual’ light bulb is an incandescent light bulb, which produces light through incandescence (hence the name). This means that electricity is passed through a narrow tungsten filament (the wiry bit inside the bulb) at such a rate that the filament will heat up until it is so hot it produces light. This means that an incandescent light bulb’s main energy emission is heat. In fact, less than 10% of its energy emission is light.Because of this low-efficiency, the UK government announced in 2007 that incandescent light bulbs would be phased-out in preference of more energy efficient light sources, such as fluorescent tubes or LEDs. LEDs produce about 80% of their energy as light, making them much more energy-efficient. Because of this, LEDs produce very little heat, and will only become slightly warm to the touch after continuous hours of use. This makes them a safer alternative to have around children, animals or flammable surfaces. LEDs can be used as indoor or outdoor lights, and actually produce light in different colours, rather than the light’s colour being dictated by white light travelling through a coloured casing. Categorised in: Lighting Advice |
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