LED semiconductor light-emitting devices include semiconductor light-emitting diodes (referred to as LED), digital tubes, symbol tubes, rice tubes and dot matrix display screens (referred to as matrix tubes). In fact, each light emitting unit in the digital tube, symbol tube, meter tube and matrix tube is a light emitting diode.
led lighting knowledge - the characteristics of led light sources
1. Low power consumption: LED with a light efficiency of 75Lm/W consumes 80% less power than incandescent lamps with equal brightness;
2. Long life: product life of up to 50000h, 24 hours continuous lighting can be used for 7 years;
3.Nanosecond response speed, make the dynamic control of brightness and color easier, can realize the dynamic change of color and digital control;
4. The design space is large: it can be organically integrated with the building to achieve the effect of not seeing the light.
5. Environmental protection: no harmful metal mercury, no infrared and ultraviolet radiation.
6. Color: different wavelengths produce different color light, bright saturation, no filter, can be red, green, blue three primary color control after the formation of different colors, and can achieve full color, gradient and other color effects.
led lighting knowledge -- led Features:
LED lighting is a green light source: low working voltage, less power consumption; Stable performance, long life (generally 100,000 hours), short response time, no pollution to the environment. Although the price is more expensive than the existing lighting equipment, it is still considered to be inevitable to replace the existing lighting devices.
led lighting knowledge - an important reference for selecting led lights
1.There should be no ultraviolet light and infrared light in the spectral composition. Long-term excessive acceptance of ultraviolet light, not only easy to cause keratitis, but also to the lens, retina, choroid damage. Infrared rays are easily absorbed by water, and too much infrared rays are absorbed when they gather through the lens of the human eye, and over time the lens will undergo degeneration, leading to cataracts.
2. The color temperature of light should be close to natural light. People live in natural light for a long time, and the human eye has strong adaptability to natural light and good visual effect.
3. No electromagnetic radiation, prevent radiation pollution to protect the brain. It can not only provide a comfortable lighting space, but also well meet people's physiological health needs, is an environmentally friendly health light source. Long-term use can protect eyesight and prevent myopia.
4. Zero stroboscopic, will not cause eye fatigue phenomenon. The power supply frequency of the ordinary fluorescent lamp is 50 Hertz, which means that the light is dark 100 times per second when the light is emitted, which is a low-frequency strobe, which will make the regulatory organs of the human eye in a tense regulatory state, resulting in visual fatigue. If the frequency of light is increased to hundreds or tens of thousands of Hertz - becoming a high frequency, the human eye will not have a stroboscopic feeling; But the true strobe free is DC power supply or semiconductor solid light emitting devices (such as LED light emitting diodes) called strobe free.
