led lighting: 10 things to know -

by:DGT Lighting     2020-06-13
LEDs (LEDs) are becoming more and more popular and highHigh quality LED lighting products are being produced and sold on the market.Incandescent or fluorescent lighting is an attractive alternative in residential and commercial lighting applications because they are very energy efficientHigh efficiency, long life, small volume, no repetitionStrike time, dimmable, generating relatively little heat, slow failure rate, earthquake resistance, working well at low temperatures, light is easy to focus, unlike today\'s popular compact fluorescent bulb (CFL, they do not contain toxic mercury.10 things you should know about this.Emerging light sources.1.Color and white LEDs can be red, green, blue or yellow.The color emitted by the LED depends on the material used to produce the LED.For example, the red LED is made of chemical elements of aluminum, gallium and arsenic.White LEDs are produced by covering the blue LEDs with a yellow phosphorus coating.White LEDs can also be created by using red, blue and green LEDs that are close to each other.At this point, no LED can emit white light.The production of LED that can emit white light is the \"holy land\" for LED light research \".2.A single high-power LED can produce light of about 80 lumens.In contrast, a standard 60-watt incandescent lamp produces about 900 lumens.As a result, a single high power LED has only about 1/11 brightness of a 60-watt incandescent lamp.Therefore, in order to produce sufficient lighting, a set of LED lamps must be included.However, the future is bright for the led, which is pun intended.In the past two years, the lumen output of LEDs has almost doubled.3.LED color temperature is a measure of the color appearance of the light source and helps to describe the apparent temperature (red) or temperature (blue) of the light ).The light source below 3200 Kelvin (3200 K) is considered warm;Above 4000 K is considered to be the solar cool solar source.In contrast, the traditional home incandescent lamp is 2800 K.The color temperature of the light source is not related to the heat that the light source will receive or the heat released by the light.The color temperature of the white LEDs is different.Some white LEDs can be as warm in appearance as 2600 K, but most white LEDs are slightly cooler in appearance.This is because most white LEDs are produced by placing yellow LEDs on blue LEDs.4.LED color rendering index (CRI) is the ability of any light source to render colors accurately.The CRI scale is from 1 (low pressure sodium) to 100 (Sun ).The CRI of 75 is considered good, the CRI of 85 is considered very good, the CRI of 95 is considered excellent, and of course, the CRI of 100 is perfect.At present, the warm is 80, which can raise the led of heating White temperature.5.As with all light sources, the effect of the LED is measured in lumens/watts, which is the amount of light produced in a power unit.25-generate warm white LEDs44 lumens/watts while 47-by production-64 lumens/watt.In contrast, typical household incandescent lamps produce 10-18 lumens/watts when a compact fluorescent bulb produces 35-60 lumens/watt.6.A ballast is required for the LED driver fluorescent bulb to work properly.The ballast provides the starting voltage and limits the current of the bulb.A similar electronic power supply is needed for the Led.This electronic power supply is often referred to as an LED driver for LEDs.The LED driver converts the line power supply to the appropriate voltage (for high-Brightness led) and current (usually 200-1000 mA or mA), also can include dimming and/or color correction controls.The efficiency of LED drivers is generally around 85%.Therefore, the efficiency of the LED driver should be reduced by 15%.7.It is a myth that LEDs do not produce heat.In fact, the heat generated by all the light sources is not different.Therefore, it is very important to be safe.Specially equipped with heat that is fully dissipated by swiheat sinks GmbH.8.LED life LED will not go out like an incandescent lamp.Instead, they will gradually darken in their lifetime until they no longer send out enough useful light.When the LED only emits 70% of the original amount of light produced by the LED, it is generally considered no longer useful.The time this takes is often called the rated life of the LED.While some LEDs may have a rated life of 100,000 hours, this is usually done only in perfect laboratory conditions.Under real-Most LEDs that work in lamps can last 60,000 hours.When the LED works in the fixture, the rated life of the LED is usually much smaller, rather than the same LED that works outside the fixture because of the heat build-up inside the fixture.The rated life of a typical LED inside a typical fixture may be between 35,000 and 60,000 hours.9.OLED is an organic light emitting diode.LED also contains carbon.Oled is usually made as a flexible lightweight board.Nowadays, the efficiency of oled is significantly lower than that of inorganic (crystal) LEDs.Oled usually produces less light in each region than inorganic solid-state LEDs, and inorganic solid-state LEDs are generally designed to be used as point-light sources.10.Infrared and UV radiation white LEDs do not emit infrared or thermal radiation like incandescent lamps.In addition, white LEDs do not produce ultraviolet radiation (UV) like fluorescent bulbs ).Although the media has given a lot of attention to LEDs, there are still too many LEDs that are not very gooddesigned.In short, the LED lighting market is still maturing.The study continues to improve LED brightness, efficacy and rated life at an alarming rate.However, in the short termBe cautious when choosing terms.For the first time, this article, Alexa, Flickr appears on the Pegasus associate lighting website.
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