What Is The Difference Between High-power And Low-power Infrared LED Chips?

The power of a single infrared LED bead is higher, the brightness is brighter, and the price is higher. The rated current of low-power infrared LED beads is 20mA, and those with a rated current higher than 20mA can almost be considered high-power. The general power numbers include: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w, etc. The main unit of brightness is lm (lumens), and the unit of brightness for low-power applications is generally mcd. These two units cannot be converted. At present, as a new type of green, environmentally friendly, and energy-saving light source, it is widely used in places such as car lights, flashlights, and lighting fixtures.
The reason why high-power infrared LED beads are called this is mainly for low-power infrared LED beads. Currently, there are three classification standards summarized:
One of them can be divided into 0.5W, 1W, 3W, 5W, 10W according to the power size 100W varies depending on the total power of the newly formed product after packaging
The second type can be divided into different packaging processes: large-sized epoxy resin packaging, piranha like epoxy resin packaging, aluminum substrate (MCPCB) packaging, TO packaging, power type SMD packaging, MCPCB integrated packaging, and so on
The third type can be divided into low light attenuation high-power products and non low light attenuation high-power products according to their degree of light attenuation.
Of course, given the large number of parameters of high-power infrared LED chips, there are different classification standards for different parameters, so they will not be described again.
High power infrared LED beads still belong to the category of LED packaging products and are the most critical link in bringing semiconductor lighting into the field of general lighting.
When using high-power infrared LED chips, it is necessary to first understand many issues such as light intensity distribution, color temperature distribution, thermal resistance, and color rendering
Mastering the intensity distribution diagram of W-class high-power infrared LED beads is necessary for the standardized use of high-power infrared LED beads. Manufacturers must provide customers with various parameter indicators of LED devices
Whether the color temperature distribution of high-power infrared LED beads is uniform will directly affect the lighting effect; And color temperature and color rendering index are interrelated, and changes in color temperature can cause changes in color rendering index.
The thermal resistance of high-power infrared LED chips directly affects the heat dissipation of LED devices. Low thermal resistance, better heat dissipation; Due to high thermal resistance and poor heat dissipation, the temperature rise of the device will affect the wavelength drift of light. According to experience, if the temperature rises by one degree, the wavelength of light will shift by 0.2~0.3nm, which will directly affect the luminescence quality of the device. Excessive temperature rise also directly affects the service life of W-class high-power LED energy-saving lamps.