With each passing day becomes more expensive electricity prices rostut !
Therefore, people are trying to more and save more !
But how do you choose a modern light bulb and how do they differ ?
That is what you and I try to tell !
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- Wikipedia, the free encyclopedia
LED lamps and LED lamps as a light source using LEDs, are used for residential, industrial and street lighting. LED lamp is one of the most environmentally friendly light sources. LED lamps do not use substances containing mercury, so they do not pose a risk in the event of failure or fracture. There are complete systems - lights and components for lamps - lamp replacement.
LED lamp.
LED lamp - stand-alone device. The body is often unique, specially designed for LED lighting source. Structurally, this lamp consists of a cap, metal housing, an employee at the same time the heat sink, the board with LEDs, electronic driver (power converter) and a semi-transparent plastic hemisphere. Sometimes referred to as an LED lamp traditional lamp with a replaceable LED lamp installed. However, a specially designed lamp has bólshey energy efficiency and reliability. LED light sources are mainly used for directional or local lighting due to characteristics of the semiconductor light emitter mainly in one direction.
Benefits.
The advantage of the LED lamp compared with incandescent - low power consumption, long service life stated from 30,000 to 50,000 hours or more, ease of installation, lower body temperature as compared to an incandescent lamp, which has a comparable brightness, high mechanical strength, often - small dimensions.
Full environmental safety can save the environment, without the need for special conditions for disposal: does not contain mercury, its derivatives and other toxic, harmful or hazardous components and substances. Sometimes, manufacturers do not comply with environmental regulations. Lamps manufacturers such plastics contain toxic electrolytes, lead-containing solder and the like. P., And the driver circuit boards impregnated binders (phenol formaldehyde resins)
Disadvantages.
The main disadvantages - high price, many LED lamps shine in only one direction (which may be a virtue). The cheap lamps by saving on capacitors appears invisible to the naked eye of a high-frequency flicker (see. Photo), but because of the savings on heat-removing elements may burn out from overheating, especially in closed lampshades. In addition, in case of failure of any of the elements of the lamp must be replaced more often than a comparable one. Another drawback is the sale of LED-lamps without specifications (violation of Art. 10 of on-2300-1), and does not allow for choice and selection of lamps in accordance with the requirements of the lighting requirements for power factor, and other critical parameters of the network.
Most white-light LEDs (blue crystal - yellow phosphor) are a heterogeneous spectrum - namely, a big dip in the spectrum at a wavelength of 480 nm. In light of this particular wavelength must respond pupil narrowing his eyes, but this does not happen and the eye (lens, retina) gets most traumatic dose of blue light. The defeat of the retina of mice eyes with blue light when irradiated with white light-emitting diodes were the experimentally validated MA Ostrovsky and P. Zach. Currently, however, a number of companies have already developed LEDs light spectrum which is adapted to the human eye.
Some media also publish articles about the harmfulness of LED-lighting, referring to the study of Spanish scientists from the Complutense University. This study really says more about the harmfulness of LED cold light as compared to other light-emitting elements, but we are talking about debt and the direct sight of the light sources - screens of various devices, which eliminates [clarify] lights.
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