LED lamp and lamp strip parameter introduction
The following is a detailed introduction of some commonly used led specifications:
1. Regarding lamp beads 0603: Converted to metric system is 1005, which means that the length of the LED component is 1.0mm and the width is 0.5mm. The industry abbreviation is 1005, and the English system is called 0603. 1210: converted to metric system is 3528, which means that the length of the LED component is 3.5mm and the width is 2.8mm. The industry abbreviation is 3528, and the British system is called 1210. 5050: This is the metric system, which means that the length of the LED component is 5.0mm and the width is 5.0mm. The industry abbreviation is 5050.
2. Number of LED lights with lights: 15 lights, 30 lights, 60 lights refer to how many LED components are welded per meter length of the LED light strip. Generally speaking, the 1210 specification light strip is 60 LEDs per meter, and the 5050 specification light strip There are 30 LEDs per meter, and the special one has 60 LEDs per meter. The price of LED strips with different LED quantities is different, which is also an important factor in distinguishing the price of LED strips.
3. LED color temperature: refers to heating a standard black body. When the temperature rises to a certain level, the color starts to change from dark red-light red-orange yellow-white-blue. When the color of a light source is the same as that of the black body, we will black body The absolute temperature at that time is called the color temperature of the light source. Generally speaking, the color temperature is an indicator for evaluating LED strips, but many foreign customers will make a special requirement because of their use. The color temperature of the light source is different, and the light color is also different: color temperature is below 3300K, the light color is reddish to give a warm feeling; there is a stable atmosphere, a warm feeling., commonly known as warm color temperature. The color temperature is in the middle of 3000-6000K, and people have no particularly obvious visual psychological effects under this hue, and there is a refreshing feeling; therefore, it is called "neutral" color temperature. The color temperature is more than 6000K, and the light color is bluish, giving people a cool feeling. It is commonly known as cool color temperature. Led lamp with price
4. Brightness: cd (candela) The basic unit of luminous intensity, candela is one of the basic units of the International System of Units. Generally, different colors of LED lights have different luminous intensities, and the common unit is mcd, which is millicandela. The higher the value, the greater the luminous intensity, that is, the brighter. This is an important indicator for evaluating the brightness of LED strips. The higher the brightness requirements, the more expensive the strips. This is because high-brightness LED chips are more expensive, and the higher the brightness, the greater the difficulty of packaging.
V. LED light-emitting angle: This refers to the light-emitting angle of the LED component on the LED strip. Generally, the light-emitting angle of the general-purpose SMD LED, that is, the SMD component, is 120 degrees. The larger the light-emitting angle, the better the astigmatism effect, but the relative brightness of the light is also reduced. The light-emitting angle is small, the intensity of the light is up, but the range of illumination will be reduced. Therefore, another important indicator for evaluating LED strips is the light-emitting angle. Nowadays, there are some bad manufacturers on the market. In order to increase the brightness of the light and make higher profits, they deliberately reduce the angle of light. If they are not careful, they will buy such shoddy components.
6. LED strip voltage: This refers to the input voltage of the LED strip. The commonly used specification is DC 12V, and some are 24V.
LED packaging technology is mostly developed and evolved on the basis of discrete device packaging technology, but it has great particularities. In general, the die of the discrete device is sealed in the package, and the function of the package is mainly to complete the electrical interconnection of the die. The LED package is to complete the output of electrical signals, the die works normally, and the output: visible light function, both electrical parameters, but also the design and technical requirements of optical parameters, it is impossible to simply use the package of discrete devices for LEDs. At the 2011 Guangzhou International Lighting Exhibition, the largest Asian LED professional exhibition hall was opened for the first time. LED products covered 12 exhibition halls, covering more than 1,500 brand manufacturers of LED products, which became a major attraction in the entire exhibition. Pretty. LED has been considered as a light source that can replace existing lighting...
