LED lamp bead parameters introduction:
1, brightness
The brightness of the LEDs is different and the price is different.
Lamp cup: the general brightness is 60-70 lm;
Bulb: The general brightness is 80-90 lm.
Note: 1W brightness is 60-110 lm 3W brightness up to 240lm 5W-300W is an integrated chip, with serial/parallel package, mainly see how much current, voltage, several strings and several.
1W red light, the brightness is generally 30-40 lm; 1W green light, the brightness is generally 60-80 lm; 1W yellow light, the brightness is generally 30-50 lm; 1W blue light, the brightness is generally 20-30 lm.
LED lens: The primary lens is generally made of PMMA, PC, optical glass, silica gel (soft silica gel, hard silica gel). The larger the angle, the higher the light efficiency. With a small angle LED lens, the light should be shot far.
2, antistatic ability
LEDs with strong antistatic properties have a long life and are therefore expensive. LEDs with an antistatic greater than 700V are usually used for LED lighting .
3, wavelength
LEDs with the same wavelength have the same color. If the color is the same, the price is high. It is difficult for manufacturers without LED spectrophotometers to produce pure color products.
White light warm color (color temperature 2700-4000K), white (color temperature 5500-6000K), cool white (color temperature 7000K or more) Europeans prefer warm white red light: band 600-680, of which 620, 630 is mainly used for stage lights, 690 close Infrared blue light: Band 430-480, of which 460, 465 stage lights are used more.
Green light: Band 500-580, of which 525, 530 stage lights are used more.
4, leakage current
The LED is a unidirectional conductive illuminator. If there is a reverse current, it is called a leakage current, and the LED with a large leakage current has a short life and a low price.
5, the angle of illumination
LEDs with different uses have different illumination angles. Special lighting angle, the price is higher.
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