Intelligent controller
Intelligent light controller based on intelligent technology and led light system . the intelligent controller was used for led light system is useful method to be production. control method has many advantages, so its application is more and more widely in the light control. when intelligent controller and led system have tried out a period of cooperation come to know each other better.
for example: intelligent controller was used for tunnel light. intelligent controller can controls led power base on different period of time and different traffic density. so the intelligent led light controller are not only satisfy the application request , but also has effect of save energy.

led rgb
The RGB made up of colorful led world! all people feel fantastic about LED wonderful world. RGB led are arguably lit device since fluorescent lamp.
RGB is an color stand in industrial world, RGB can produce varied type of color through three color(RED,BLUE,GREEN) which will overlap with each other to produce the effect. It contains nearly all of the color that human can be certain of all color,RGB is one of the the most widely used in colour system.

the higher the led currently whether led has more higher lumens?

the higher of led lumens when the led current increases. but the increase value has not grown exponentially. other words —- the relationship between the led current and led lumens were exponential relationship. that means the led current has almost doubled, led will not allow lumens to be doubled increased. at moment the lumens keep it a little add more

Led of mount package
With the rapid development of surface mount technology, new packaging technologies arise continually. there are have tow kind of mount package is also import for led production. they are in-line package and SMD package respectively .

In-line package : in-line package is like bug it had a pair of feet. in-line package can be installed in the PCB Via.
Smd package: smd was miniaturization of product needs. they are physically small. it doesn’t need via at producing .

lit theory of led diode

(a)    p-n junction under zero bias

(b) p-n junction under forward bias

The relationship between wave length and electricity voltage

Eg=hv/q=hc/(λq)
λ=hc/(qEg)=1240/Eg(nm)
Eg:gap
h= Planck constant=4.13*10-15eV·s
c= light speed = 2.998*108m/s
λ= wave length

substrate energy gap

led beam angle
The relationship between the angle and the light intensity is analyzed.First the lens angle is determined that angle of led beam. simply add the corresponding angle lens in echo led. then we can lock led beam angle . there are has a lot kind of lens from different angle. such as: 8°、15°、25°、45°、60°、90°、120°，it can be classified into three categories to help identify see led beam angle more clearly base on beam angle.
narrow beam: ＜20°；
middle beam: 20°~40°；
weight beam: ＞40°。

ultraviolet led encapsulation

The encapsulation of ultraviolet led metal is import for uv led strip. there are has a variety kind for led encapsulation metal. such as:glass lens, epoxy resin and silicone resin.quarts glass having a relatively high softening point. the hot processing temperature as 1700~2000℃. from the technologic angle say—-the quarts glass are not good for uv encapsulation metal. the high temperature heat-resistance ability of epoxy resin is general. and it has less ultraiolet-resistance capacity.
Silicone is best choose for uv led ecapsulation.

LED malfunction
In the led market and the continuous development in the run-in, step by step toward maturity. service time is one of the emphases for research.We also encountered these problems(light malfunction) during use. the so called” LED malfunction ” the meaning is –led isn’t working. for the reason we must study that light malfunction phenomenon. this might help led factor overcome light malfunction phenomenon. and improved led quality .now! through analysis and summarizing on the process of light malfunction as follows:

Welding line crack
When we meeting “LED malfunction”,now we think we know where we’re going. first we should know that it’s short circuit or open circuit?. if there are open circuit. this is typically  characterised by open circuit(In the inner control loop is crack). this is familiar reason for led malfunction. the most common 5 locate for led malfunction—please see follows pic A、B、C、D、E

Why should we will do my best to protect led ?

Because of it is species advantage ,led is playing an important role in more and more area. we know that led (Light Emitting Diode) is kind of solid Semiconductor. led might able to make electricity energy to light energy. led belong to device of voltage sensitive. led service time is so long when led is used in a right way. the follows note ismore than anything,

Protects led from damage of electromagnetic wave and static;electrostatic hazard to led equipment in led labs is one of the malfunctions most difficult to eliminate. we should be recognized to prevent static damage to led during assembly work.

The led factory setup can be max in 20mA,the growth of the voltage becomes slower with current increase

shoddy phenomenon

In led market may led factory cut his rates to drive out rivals .there inevitably are lots of problems, especial on the led quality . If the price is too low will led in shoddy, shoddy work to reduce costs, who do lose money trading it?
Anyway ,example for you —– small size led posing as big size. please see pic as follows.

from what we saw, we gathered ( that) led module on right side is big thanled module on left size. in fact we are really taken for a ride, the led module on right side added more phosphor(please see yellow area) to deceive led user.as a matter of fact, it is just an small size led module.