1. Brightness

LED beads have different brightness and prices.

Lamp cup: the general brightness is 60-70lm; Bulb lamp: the general brightness is 80-90lm.

1W red light, the brightness is generally 30-40lm; 1W green light, the brightness is generally 60-80lm; 1W yellow light, the brightness is generally 30-50lm; 1W blue light, the brightness is generally 20-30lm.

Note: 1W brightness is 60-110lm; 3W brightness can reach 240lm; 5W-300W is an integrated chip, which is packaged in series/parallel, mainly depending on how much current, voltage, series and parallel.

LED lens: The lens is generally made of PMMA, PC, optical glass, silica gel (soft silica gel, hard silica gel) and other materials. The larger the angle is, the higher the luminous efficiency will be. With a small angle LED lens, the light will go far.

2. Wavelength

The wavelength is consistent and the color is consistent. The price is high.

White light is divided into warm colors (color temperature 2700-4000K), normal white (color temperature 5500-6000K), and cold white (color temperature above 7000K). Europeans prefer warm white.

Red light: band 600-680, of which 620630 is mainly used for stage lamps and 690 is close to infrared ray.

Blu ray: band 430-480, in which 460465 stage lamps are mostly used.

Green light: band 500-580, in which 525530 stage lights are used more.