Detailed explanation of the basic knowledge of household led lighting fixtures
Knowledge of led lighting fixtures - basic knowledge
LED semiconductor light-emitting devices include semiconductor light-emitting diodes (referred to as LEDs), digital tubes, symbol tubes, meter 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.
Knowledge of led lighting fixtures - the characteristics of led light sources
1. Low power consumption: LEDs with a luminous efficiency of 75Lm/W consume 80% less power than incandescent lamps with the same brightness;
2. Long lifespan: The product lifespan is up to 50000h, and it can be used for 7 years when it is lit continuously for 24 hours;
3. The response speed of nanoseconds makes the dynamic control of brightness and color easier, and can realize the dynamic change and digital control of color;
4. Large design space: it can be organically integrated with the building to achieve the effect of only seeing the light but not the lights.
5. Environmental protection: no harmful metal mercury, no infrared and ultraviolet radiation.
6. Color: Different wavelengths produce different colored lights, which are bright and saturated, without filters, and can be controlled by three primary colors of red, green, and blue to form different colors, and can achieve full-color, gradient and other color effects.
Knowledge of led lighting fixtures - led features:
LED lighting is a green light source: low operating voltage, low power consumption; stable performance, long life (usually 100,000 hours), short response time, and no pollution to the environment. Although more expensive than existing lighting fixtures, it is still considered to inevitably replace existing lighting fixtures.
Knowledge of led lighting fixtures - an important reference for selecting led lights
1. There should be no ultraviolet and infrared light in the spectral composition. Excessive exposure to ultraviolet rays for a long time will not only easily cause keratitis, but also cause damage to the lens, retina, choroid, etc. Infrared rays are easily absorbed by water. Excessive infrared rays are absorbed in large quantities when they are collected by the human eye lens. Over time, the lens will degenerate and cause cataracts.
2. The color temperature of light should be close to natural light. People live under 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 and protect the brain. It can not only provide a comfortable lighting space, but also well meet the needs of people's physiological health, and is an environmentally friendly and healthy light source. Long-term use can protect eyesight and prevent myopia.
4, zero stroboscopic, will not cause eye fatigue. The power supply frequency of ordinary fluorescent lamps is 50 Hz, which means that when it emits light, it brightens and dims 100 times per second. If the frequency of light emission is increased to hundreds or tens of thousands of hertz or more, the human eye will not have a stroboscopic feeling; ) is called a frequencyless flash.
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