In Line Led 3Mm High-Power Purple Lamp Beads

Common sense of LED chip size:

　　 Classified by shape, chips are generally divided into wafers and squares. Among them, the wafer is relatively low-grade and the performance is not stable enough 3W High Power Lamp Beads. 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, the larger the chip size of the chip of the same brand, the higher the brightness. The Led Lamp Beads I use most often, the red light and yellow light are generally 9-12 mils, and the white, blue, and green lights are generally 12-14 mils. This is also the most commonly used chip on the market High-power Purple Lamp Beads. If you use a larger chip, the brightness Although it can be increased a lot, the price of the chip has increased substantially, which is why few people adopt large-size chips.

　　 LED color common sense:

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 10W High Power Lamp Beads. The wavelength is 585nm, and the white light LED also uses a blue chip. Just add an appropriate amount of phosphor to the blue chip to emit white light.