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LED Bulbs Illuminating Our Lives



Although Leds (mostly by means of individual diodes) are already part of our lifestyle for some time, their use for lighting purposes started only decades later. This was because of their low light output and to other concerns provided only by later technical inventions.

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What are the stipulations making it simple to have LED light bulbs, which operate at mains and emit enough light to replace any one of our current light bulbs?

Light emitting diodes operate at low voltage DC, therefore LED bulbs in household use must include internal circuits to operate from AC. Another critical condition is obviously a good light creation of the LEDs. Although, the lighting emitted by way of a single LED is increasing very fast due to the large amount of research completed in the area, most LED lights contain multiple diodes, to increase light emission. LED light bulbs utilized as a primary supply of lighting in households started with the development of SMD technology to LED lighting solutions, and it was then high power LEDs. They are very bright LEDs, however they are challenging to put into the small space given by the traditional light bulb.

Breakthrough products in household use were Osram's replacement for a 40W conventional light in 2009, and Philips' replacing of a 50W bulb in May 2010. The light bulbs made up of this high light output are full replacements of previous light bulbs of filament types, with similar beam angles. Simultaneously, countless Chinese manufacturers focus on developing new LED products at a price much more open to everybody. These solutions might lack brandings which are a guarantee for quality, but will produce quality products with warranty also provided.

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Another issue was heat generated by the LEDs. LEDs are heat sensitive devices, therefore their thermal management is vital. When placed close to each other - particularly with high power LEDs, which generate more heat - LEDs can simply overheat one another, which eventually contributes to the failing from the device. The simplest way of avoiding the overheating of LEDs was them to be uncovered, even though this meant they were also unprotected, and this may also shorten their lifespan due to the dust or oil depositing around the LED's surface. The most effective solution was the creation of heat sinks with cooling fins to the kind of the bulb itself. This allows a proper air circulation and in the end releases most of heat generated through the LEDs.

LEDs are available in standard fittings in the interest of easy replacement, however not all LEDs run in the mains, 12V LED lights are still designed for running them on batteries or transformers. Transformers need to be LED compatible, because the electronic transformers most often used in combination with halogen lights ruin LEDs. There isn't any such problem with LED bulbs which are suited to 220V or mains quite simply. So those, who want to reduce their cost of lighting quickly, this is the solution these were trying to find.

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