Lighting technology: the basic knowledge about LED lighting project:
in recent years, LED lighting project received strong government support, the construction of city lighting engineering as an important measure to improve and beautify the environment of the city. What is the LED lighting project? What required to do for the LED lighting engineering?What do we care about it?

Below, we will give you a brief introduction about the basics of LED lighting engineering. before introducing the basics of LED lighting project, let’s repeat LED lighting works.LED (Light Emitting Diode), light emitting diode, is a solid state semiconductor devices, which can be directly Electricity into light. LED’s heart is an semiconductor wafer, the wafer is attached to an LED on the bracket, one end is negative, the other end connected to the power supply is Positive, so that the whole chip is epoxy encapsulated. The semiconductor wafer is composed of two parts, a Points are P-type semiconductor,it inside the hole dominated the other end is an N-type semiconductor, here is mainly electronic. ButWhen connecting the two semiconductors, to form a “P-N junction” between them. When the current through the wire into the semiconductor wafer.
Electronics will be to P area, complex in area P electrons and holes, , then it will emit energy,This is the principle of the LED light. The wavelength of light that is the color of light, forming a PN junction is made ​​of a material determined.

1.LED digital city projects of energy saving and efficient lighting brightness.

Also known as LED tube, LED guardrail lamps, LED lights outline; this product is used to building body contour installation, KTV Door head or advertising signs,
and road and bridge parapet lighting project; reach colorful water, chasing, scan results;
if made ​​of LED screens (LED yard signs) can be a variety of dazzling animation and flowers, You can also play video; the text and map Case. LED digital tube classified by the effect can be divided into: monochromatic light colors (red, yellow, blue, green, white); colorful can be divided into: single-stage colorful gradual transition; really sixth, really eight, paragraph 12 , 16 segments, 32 segments, 48 segments and so on. According to the control method is divided into: internal and external control. Internal control: control the led with The IC chip in tube. Directly connected the power after flash variety of pattern.explained the concept simply of external control is simply the need for an external controller; controller system is divided into offline and online systems; online system refers to the control system attached to the computer (more for LED digital tube screen); offline system work is not required attached to a computer,Input control signal to drive LED after connected power. to pay attention to installed outside the control signal.usually for signal input from the male, female for signal output;
2.LED rainbow tube LED rainbow tube

Also known as LED lights, LED rope light; is one of the most commonly used product on lighting project, and the price is relatively cheap, is Customer favorite LED lighting products. Mainly applied to the cost is not high, the effect is not too gorgeous place;
can make build Floor Body or signs outline; iron word or shape of the sides; KTV cove ceilings or decoration. LED rainbow tube classification
LED rainbow tube classification

The second round, round three lines, flat line, party line, flat three lines, flat four lines, flat five lines, flat seven line etc.; there are red, yellow,Blue, green, white, red, blue, red, red yellow blue, red yellow blue green;including LED lights, LED flexible neon lamp,make the installation ,try not take out all led form the reel, then the entire pull to the building body is provided; because if too much force will lead to a lamp with a line break(causing the lamp with irreparable damage),
If there is no light in the middle, you can cut the unit that does not light with a razor blade, and then use the middle connector docking.
In addition,must be reminded that,in the use of wires to the attention of the negative and power;

The power consumption is not to large, the main line using a national standard 4 Square millimeter of the main line, the line transformer to lamp using 2.5 square millimeter wires. The signal line as far as possible the use of ultra five network.Transformers and controller measures pay attention to waterproof rain.
We discussed the LED lighting engineering products — LED decorative lamp series LED star light
A LED star light (LED light string), LED net light, LED waterfall lamp, LED stars.These LED decorative lamp lighting in general use of flowers or small landscape. For example, to do lighting effects to a tree, you can use multiple strings LED star light, star lights around LED in the branches, and through the controller flashing, became flashes colors