Benwei Lighting: How to judge the pros and cons of LED industrial and mining light sources?
As a large industrial country, lighting energy consumption accounts for a certain amount of energy consumption in factories. Therefore, the use of a new type of LED light source as the light-emitting material-LED high bay light, which can achieve the effect of energy saving and environmental protection, has become the focus of people's attention. So what factors affect the quality of LED industrial and mining light sources, and how to judge the pros and cons of LED industrial and mining light sources? Below, I will analyze the following aspects:
How to judge the pros and cons of LED industrial and mining light sources:
1. Consider the electrical characteristics of semiconductor light-emitting diodes from the electrical performance of LED industrial and mining light sources
The electrical characteristics of the PN junction of LEDs are unidirectional nonlinear conductivity, low-voltage drive, and sensitivity to static electricity. Different from the electrical characteristics of traditional light sources, the main measurement parameters include forward drive current, forward voltage drop, reverse leakage current, reverse breakdown voltage, and electrostatic sensitivity.
2. Consider the heat dissipation performance of the PN junction temperature of the power LED
It is particularly important to make LED high bay lights obtain higher power and luminous efficiency, and to solve the problems of PN junction temperature and shell heat dissipation of power LEDs for lighting. The thermal performance of LED high bay lamps is generally judged by parameters such as thermal resistance, case temperature, and junction temperature.
3. The reliability of LED work and the length of life
In particular, LED industrial and mining light sources are more important as the two indicators of LCD backlight and large screens. The length of life of the LED we evaluate does not refer to the usable period from use to damage, but refers to the duration of the LED under rated power conditions, when the luminous flux decays to a specified percentage of the initial value. The longer the duration, the longer the life of the LED.
4. Consider the radiation safety of LED light source to biological or human body
Since the light source of the LED high bay light is a narrow beam, high-brightness light-emitting element, its radiation may be harmful to the retina of the human eye, so the International Electrotechnical Commission IEC applies to the LED high bay light source for different occasions. The effective radiation limit requirements and test methods are specified, which is also an important factor for judging the quality of LED high bay lights. Among them, the European Union and the United States make mandatory requirements for LED radiation safety testing.
