Learn about LED panel lights

Ordinary people think LED panel lamp is just a very simple lamp, but what you don't know is that it has a high market position and customers have good requirements for other quality. It involves many fields such as heat, optics, structure, hardware, materials, electronics, etc. a new surface light source is used in its light source technology. The light is not only soft, but also very beautiful in appearance, and is popular with customers.

As a new type of light source, LED panel lamp has not only unique design, but also can form uniform plane luminous effect through high light transmittance light guide plate. The uniformity of light is not only uniform, but also very soft, which can relieve the fatigue of eyes. In addition, there is also a good radiation protection function, will not stimulate people. It belongs to green environmental protection lamps.

Energy saving and environmental protection is a major feature of wall lamp. LED panel lamp material is environmental protection, low power consumption, high luminous efficiency, lighting brightness and other aspects are very good, and the service life is long.

In the test of LED panel lamp, we find that to improve efficiency, we must do the following two points: first, to select high luminous efficiency and high brightness LED, which can not only improve efficiency, but also reduce cost, and more importantly, improve the quality of LED flat panel lamp. Second, we should make full use of the light from LED. If only focus on the brightness of LED, but not design and improve the light path, effectively improve the utilization of light, it has little effect on improving the efficiency of LED flat panel lamp.

Another important indicator of LED flat panel lamp is the uniformity of light emission. The general standard gt004-2012 LED flat panel lamp for general indoor lighting on both sides puts forward the requirements for brightness uniformity, namely the ratio of the minimum brightness of the light-emitting surface to the arithmetic average of brightness.

As LED panel lamp, the uniformity of light will lead to the uniformity of panel display brightness, which makes people feel uncomfortable. According to the requirements of gt004-2012, the brightness uniformity of LED flat panel lamp shall not be less than 0.8. Select the appropriate test point to measure the brightness of each point according to the size of the screen. Generally speaking, more than 80% of the uniformity has little effect on human eye perception.

From the visual sensitivity of human eyes, people are more sensitive to yellow and green colors, that is, the two colors fluctuate a little, and the human eye can feel. LED flat lamp produced by the same manufacturer shall not have obvious color difference between different batches of products. Otherwise, it is difficult for users to buy the same color products again after the product fails.

In LED flat panel lamp, the commonly used colors are red, green, blue, white and yellow, and the measurement unit is nm. For people who are sensitive to color, you can feel it as long as the color fluctuates slightly. In order to control the color difference, we must control the raw materials. In order to avoid differences caused by different color wavelengths, the lamp manufacturer shall control the LED light source.