Teach you how to quickly distinguish the size and power of led lamp beads

- Jul 01, 2019-

Related parameters 1cd=1 lm/sr (lumen/stereoargon)=1 candlelight. It is interpreted as: the luminous flux emitted by the light source within the solid angle dΩ in the specified direction or the luminous flux dΦ transmitted by the obtained light source, the quotient of which is the luminous intensity I (in candela, cd). The outer cover can be made of PC tube, high temperature resistance 135 degrees. PC tube is made of LED cover, the internal temperature can reach 135 degrees, the external temperature can resist -45 degrees without cracking. At present, it is widely used as a new green, environmentally friendly and energy-saving light source. Lights, flashlights, lamps and other places.

    The high-power LED is so called, mainly for low-power LEDs. There are three types of standard classifications:

    Led high-power lamp bead is a kind of LED lamp bead. Compared with low-power LED lamp bead, led high-power lamp bead has higher power, brighter brightness and higher price. The low-power LED lamp bead rated current is 20mA, and the rated current higher than 20mA can basically be counted as high power. The general power numbers are: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w, and so on. The main brightness unit is lm (lumen), and the unit of brightness of low power is generally mcd (1cd=1000mcd), which is the luminous intensity.

    Related parameters 1cd=1 lm/sr (lumen/stereoargon)=1 candlelight. It is interpreted as: the luminous flux emitted by the light source within the solid angle dΩ in the specified direction or the luminous flux dΦ transmitted by the obtained light source, the quotient of which is the luminous intensity I (in candela, cd). The outer cover can be made of PC tube, high temperature resistance 135 degrees. PC tube is made of LED cover, the internal temperature can reach 135 degrees, the external temperature can resist -45 degrees without cracking. At present, it is widely used as a new green, environmentally friendly and energy-saving light source. Lights, flashlights, lamps and other places.

    The high-power LED is so called, mainly for low-power LEDs. I have summarized three types of classification standards: One is based on the power size, which can be divided into 0.5W, 1W, 3W, 5W, 10W....100W. The unequalities vary depending on the total power of the molded product after packaging.

   The second can be divided into: large-size epoxy resin package, mermaid-type epoxy resin package, aluminum substrate (MCPCB) package, TO package, power type SMD package, MCPCB integrated package, and the like according to different packaging processes.

   The third can be divided into low light decay high power products and non-low light decay high power products according to the degree of light decay.

   Of course, due to the high number of parameters of the high-power LED itself, there are different classification criteria according to different parameters.

   Led high-power lamp beads still belong to one of the LED package products, which is the most important part of the semiconductor lighting industry to the general lighting field.