LED lamp bead application
1. Common sense of the size of LED chips:
According to the shape classification, the chip is generally divided into a round chip and a square chip. Among them, the wafer is relatively low-grade, and the performance is not stable enough. I generally do not use the LED produced by the wafer; the square wafer is generally measured by size, such as 12mil (1mil=0.0254 square millimeter). Generally speaking, for chips of the same brand, the larger the chip size, the higher the brightness. The most commonly used LED lamp beads, red and yellow light are generally 9~12mil, white, blue, green light are generally 12~14mil, which is also the most commonly used chip on the market, if you use a larger chip, the brightness Although it can be improved a lot, the price of the chip has been greatly increased, which is why the large-sized chip is rarely used.
2. Common sense of LED color:
The different colors of LEDs are determined by the chips with different wavelengths. For example, the general wavelength of the red light chip is 620~630nm (nanometer), the general wavelength of the green light chip is 527nm, the general wavelength of the blue light chip is 470nm, and the general wavelength of the yellow light chip is 470nm. The wavelength is 585nm, and the white light LED also uses a blue light chip. Just add an appropriate amount of phosphor on the blue light chip to emit white light.
3. Classification of LEDs:
According to the power size: it can be divided into low power and high power (in the industry, lights above 0.5W are generally called high-power lights)
According to the shape: it can be divided into in-line type and patch type.
Straw hat LED: It can be subdivided into F3 (the diameter of the lamp head is 3mm) and F5 (the diameter of the lamp head is 5mm) according to the size of the lamp head; Whether the lamp head is transparent or not can be divided into transparent and foggy.
Piranha LED: It can also be divided into F3 and F5 according to the size of the lamp head. According to the shape of the lamp head, it can be divided into round head (that is, the most common piranha lamp), flat head (this kind of head is very special, its light-emitting angle is close to 180 degrees, Generally used in occasions where astigmatism is required).
Low-power SMD LED: According to the external size, it can be divided into 0805, 1206, 3020, 3528, 5050 or 5060 (the difference between 5050 and 5060 is very small, it is difficult to distinguish it with the naked eye, and customers who are not professional can call it according to his habit).
High-power LED: Generally divided by power, common ones are 0.5W, 1W, 3W, 5W, 8W...
4. Common sense of the number of LED chips:
For the same LED light, only one chip is most commonly used, but in special cases, two or even four chips can be used. Convenience leads to unstable performance, generally only one or two chips are used); one piranha lamp can use one, two, three, or four chips, and the most commonly used are one and two chips; SMD 3528 lamp can use one chip , Two, three chips (our company often use one or two chips), SMD 5050/5060 generally use three chips. Special note: When the SMD light uses three chips, there are two situations:
1) The colors of the three chips are exactly the same
2) The three chips are red, green, and blue, which is what we often call RGB lights
5. Common sense of LED viewing angle:
The most common light-emitting angle of in-line LEDs is 120 degrees, and special ones can be 45 degrees or 15 degrees.
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry， our web: 
https://www.benweilight.com/.
