LED DROOP
The blue LED Illuminate yellow fluorescent powder got a white LED. This is the origin of white LED. First we gave a brief analysis of LED DROOP . there are have two reason . a reason for some self reason . the blue led droop is fast than RED LED ,YELLOW LED AND GREEN LED.Other reason from fluorescent powder DROOP. The led fluorescent powder DROOP will be serious in high temperature.
Concretely, this reason includes the following two parts,
Quality problems:
*LED chip have a quality deficiency issue make brightness DROOP is fast.
*Production technology has been faulted
The LED not used correctly:
*It is better to use constant current to drive led. Because the voltage drive make LED DROOP is fast.
* Driving current can be overly ambitious. Even the current is larger than requirements of Technical Specification.

LED’usage recomendations
As a single led and as multiple led, we are defined by IF(range is 10mA-20mA) on led spe sheet. The LED short circuit currents of bulk electric are very high. it’s Mable destroy the LED when restart the led initially.The user must be carefully that designed to avoid over voltage (over current) for a start, keeping the color and brightness consistency in 20 mA .
That said, To obtain uniformity of brightness and color, should use the same current and same batches. Because of the different batches of LED Have different performance characteristics. It’s to cause differences in brightness .

LED how to preserving (or moistureproof)led module— All the user are concerned with the topic of the Secure the working.today we simply talk about this topic

In order to avoid moisture, LED should be stored away from wet place,Try to decide on fittings dry and ventilated environment, the storage temperature for -40 degrees C – +100 C, relative humidity below 85%.After unpacking, immediately use is best,Tidying up the remainder of led module to original packaging, about it we are expected to run out in less than four months. One more time to say that please settle your led module as quickly as possible when open the packaging. Becase of the storage temperature for 5 C -30 C at this moment , the relative humidity below 60% .Do not use the unknown chemical liquid to clean the LED module, because that might will damage the LED resin surface, even causing colloidal cracks.
if necessary, pleas to clean the LED module with alcohol or fluorine wrapped at natural temperature . the cleaning time within one minute.

High power led bracket of materials

The different power led using several different led bracket. Small power adopt PPA、 medium power using PCT、some high power led were equipped with EMC . All plastic materials has water absorption . led module have to be  Dehumidification when using the led module. electroplated coatings is a key process in manufacturing led bracket. The step are directly related to the  luminous flux and welding performance.Choose a best bracket is paramount to the development work in high power led.

medium power led is much better for the using copper material . most high power led module are now already made by Direct Bonding Copper.

Application area of UV-coating:

http://www.ledlightmake.com/infrared-ultraviolet-led-strip-c-80_92/

*Coating pre-coating of PET
*PVC (meet requirements of Polyvinyl Chloride ( PVC-U)

*PVC (in line with the requirements of polyvinyl chloride)

*Coating pre-coating PP and PE
*COATING and not COATING of printed sheet
*PE, BOPP and OPP films after (Electronic) Coronafinish
* Spray paint(not plastic-coated)with Aluminum material(meet the relevant requirements)

About LED Dimmer adjust led color temperature and adjust RGB

*LED Dimmer as adjust led brightness with dimmer. For example:adjust between 100 lm ~1000lm.

http://www.ledlightmake.com/led-controller-rgb-dmx-c-88_91/led-dimmer-controllersingle-color-knob-adjustable-brightness-p-243.html

*Adjust led color temperature Generally refers to Adjust led color temperature (reconciles the two difference color temperature) such as t between 2700K~6500K

http://www.ledlightmake.com/led-controller-rgb-dmx-c-88_91/led-remote-dimmerm5-mini-led-christmas-light-strips-controller-p-246.html

* Adjust RGB as Adjust color of RGB such as RED GREEN and BULE

http://www.ledlightmake.com/led-controller-rgb-dmx-c-88_91/dx8-rgbw-24g-led-touch-glass-panel-controller-p-350.html

Comparison between LED light source and incandescent lamp
*LED luminous is high efficiency.
Compare of Luminous efficiency: incandescent lamp, halogen tungsten light efficiency for 12-24 LM / watt, most of the power from heat consume.
*LED light source service life is long
Incandescent lamp, fluorescent lamp, halogen tungsten lamp is radioluminescence 。they have filament burnability, thermal deposition, optical attenuationas well as other characteristics, so led has a long server life that Incandescent lamp and fluorescent lamp,
LED light source provides greater safety and reliability
calorific value of LED light source is low, no heat radiation, it’s cold light source, can be used to touch screen cleaner and safer . Capable of precisely controlling the light emitting angle , light color and, no glare, no mercury, sodium.

He is one of my neighbor, just live on the 3F of the building towards my room.he bought some grow lights plant led lamp yestoday. Look, he has already begun to using it.

Right! Let’s go and find that plant led.

How do human find out ultraviolet light?
Before that we left undiscussed the subject of how this uv light might be discovered. Now all of us, Let’s start! so many kinds of uv led in led market. uv led is now very widely used. But how do we actually go about discovering the light that?
Solar radiation to the earth, except for ordinary visible light, This light should also be included in ultraviolet light(ultraviolet ray) ,earth’s natural UV light origin in the sun. In this way, The sun light through the atmosphere, a large amount of ultraviolet is absorbed by the atmosphere ozone.only a small part of the uv light source reach the earth. The British physicist Herschel found out the infrared light with prismatic spectrum in 1800.

Since then, more scholars ‘ attention that infrared light and ultraviolet light. The German physicist Ritter(Johann Wilhelm Ritter) had taken a serious interest in the invisible light . .he is convinced that the symmetry of North and south poles. And deeply convinced that not visible radiation did exist. . which is ultraviolet light.

Discussion on the problem of lampblack depurating in catering trade—extensive use of uv led strip
Today we are talk about The characteristics of application& development of UV led strip. It is vexing to have to admit thing that Oil-Smoke Pollution of Diet-Service Trade of City. This is our Analysis on the Current Oil-smoke Pollution of the Food and Beverage Industry . we are each anxious to looking for solutions to this.
In promoting of the technology and application of the oil fume purification system, It is possible to take steps before any Air pollution has occurred to minimize risk. the UV LED can solve this problem efficiently. Photolysis and oxidation treatment after with uv led , then excrete carbon dioxide and water.
Photolysis and oxidation fume purification system with special UV LED strip , it will sever the oil molecular chain of lampblack.they could be turned into smaller oil molecules, it has to be further is the burning cold, then generates carbon dioxide and water molecules, finally removing carbon dioxide and water molecules with ventilating fan. only little amount of white powder residence here. The white powder smooth and non-sticky . Moreover odorless and tasteless and flame retardant, biodegradation, the system may have eased the air-pollution problem.