For lighting fixtures, we also need to understand some knowledge to some extent, because they play a decorative role when hung at home, including playing a very important role when used at night. Therefore, here we need to look at what LED lights mean and what their uses are, because so far, a small number of people are not clear about their uses. In addition, what is the relationship between LED lights.

What does LED light mean and what are its uses

LED light is an electroluminescent semiconductor material chip, which is cured onto a bracket with silver or white glue, and then connected to the chip and circuit board with silver or gold wires. The chip is sealed with epoxy resin around it to protect the internal core wires, and finally installed on the outer shell, so the seismic resistance of LED light is good.

Used as a household light. Many LED lights can replace spiral incandescent lamps or energy-saving bulbs, ranging from 5-40 watts, low-power incandescent lamps, to 60 watts. Some lights can even replace higher power bulbs, such as a 13 watt bulb that has the same luminosity as a 100 watt incandescent lamp. LED bulbs also have different color options, but the electricity and maintenance costs are lower.

The relationship between LED lights

As is well known, the wavelength range of the visible light spectrum is 380nm to 760nm, which is the seven color light that the human eye can perceive - red, orange, yellow, green, cyan, blue, and purple. However, each of these seven colors of light is a single color light. For example, the peak wavelength of red light emitted by LEDs is 565nm. There is no white light in the visible light spectrum because white light is not a monochromatic light, but a composite light composed of multiple monochromatic lights, just as sunlight is a white light composed of seven monochromatic lights, and white light in color televisions is also composed of three primary colors: red, green, and blue.

From this, it can be seen that in order for an LED to emit white light, its spectral characteristics should include the entire visible spectral range. But it is impossible to manufacture LEDs with this performance under the process conditions. According to research on visible light, the white light visible to the human eye requires a mixture of at least two types of light, namely two wavelength emission (blue light+yellow light) or three wavelength emission (blue light+green light+red light).

Both of the above modes of white light require blue light, so capturing blue light has become a key technology for manufacturing white light, which is currently the "blue light technology" pursued by major LED manufacturing companies. There are only a few manufacturers internationally that have mastered "blue light technology", so the promotion and application of white LED, especially the promotion of high brightness white LED in China, still has a process to go.