As an emerging force in the light source, LED luminous and very different to the traditional light sources. It is the use of electrons and holes in the semiconductor PN section composite luminous. Luminous way different decisions LEDs and traditional light sources are essentially different, it has its own unique.
First, the size of the LED is a small, single powerful LED chip size is generally only 1 mm2, coupled with the outside of the packaging materials, the diameter of an LED is usually only a few millimeters, multi-chip mixed light LED integrated led power 10w chip, size slightly larger. High degree of flexibility in the appearance of the lighting design, LED lamps need to be made the size of point, line or surface light source, according to the characteristics of the building structure to custom lamps to implemented as well as see the effects of light but not light. Modern building more and more mining multi-glass wall and other new material, which makes the traditional outside lighting for ways to gradually replaced as the transmission way of lighting, LED lighting as the transmission an excellent choice, and help reduce the problem of light interference and light pollution.
Second, the LED color is rich, monochromatic incident light. Monochromatic LED beam of monochromatic, which is determined by the LED chip emitting principle, the use of different luminescent material, you can get the monochromatic light of different colors, in addition, on the basis of the blue chips, with yellow phosphor can be a different color temperature white LED, or by the red, green, blue three monochromatic LED chip package to an LED which the optical design to achieve the mixing of the three shade.
Third, the LED's long life, fast response, you can repeatedly switch. High power LED's life expectancy under normal working conditions, more than 50,000 hours, LED response soon, we repeated switching operation of the led 1w without the life or performance of the harmful effects. This is very different from traditional light sources. Ordinary incandescent lamp switch repeatedly, its life expectancy drop; ordinary fluorescent lamps, each switch will cause the loss of electrode emission materials, frequent switching can lead to a rapid decline in the life of the lamp. High-pressure gas discharge lamp, repeatedly switching the electrodes of the same will light a very negative effect, but this type of light source can not warm boot, that is, the light goes out, be cooled by a certain time before they can start again . Therefore, the need to repeatedly switch operation in terms of lighting effects, LED has a unique advantage.
Fourth, the LEDs can be light color of the fast variety of changes. As noted above, the red, green, and blue monochrome LED chips together, will be issued to the three colored light mixed light, you can get white light. If we are red, green, blue three-chip control, you can change the ratio of three colored light in the optical output, in order to achieve the color change of the LED optical output. As a result, an LED is like a palette, can be deployed depending on the needs of the different colors of light, which is the traditional light source can not be done. LED response speed is fast, easy to control, so you can achieve fast light color, variety of changes, we can use this feature of the LED's, constructed a number of dynamic effects.
Fifth, the led 10w can be used to build a variety of patterns. LED small size, solid structure, and short response time, we can build with LED graphics; then these graphics to be combined in order to achieve certain design effect. Now, in the streets of the city, businesses and stores, we can see a lot of flat pattern built by the LED or three-dimensional graphics, patterns and graphics can be very compelling results. In addition, the LED large-scale centralized control, the entire building's exterior as a dynamic screen display.
Damp heat test: lamps after impact test, can not occur leakage, lighting does not shine and other electrical anomalies.
Test method: according to the rated input voltage led power 50w lamps, power lighting; to test the impact of the relay control lamp at room temperature and atmospheric pressure,
The test setup: lighting 30s, lights-30s, circulation 10,000.
After impact test, the lamps can not occur leakage, lighting does not shine and other electrical anomalies.
LED lamp input voltage by the voltage regulator will be adjusted to the maximum rated input voltage of 1.1 times; lamps above method in the upper and lower left and right, before and after the three directions were tested 30 minutes.
Led lamps placed in a room temperature of 25 ° C environment;
Temperature cycling test: High Power LED 50W lamp input voltage regulator adjusted to 0.9 times the minimum rated input voltage;
3 led lamps placed in a constant temperature and humidity box, constant temperature and humidity box is set to 95% relative humidity, temperature of 45 ° C;
Test Method: Reference standard: experience in the industry
Normal temperature and pressure impact test, the lamps can not occur leakage, lighting does not shine and other electrical anomalies.
Ambient temperature and pressure impact test: led lamps placed in a room temperature of 60 ° C room;
Vibration velocity of the vibration tester is set to 300 rev / min, the amplitude is set to 2.54 cm, launch vibration analyzer;
Test methods: low temperature and pressure and its impact testing: led lamps placed in a test box, test box temperature can be adjusted to the rate of temperature change; for objects: LED lamps (including leddriver the finished lamps)
led lamps vibration testing: Testing requirements: Test method: After a vibration test fixtures can not occur parts fall off, structural damage, lighting does not shine, and other anomalies.