High-power lamp beads and LED point light source selection tips

The selection of high-power LED lamp beads and LED point light sources should be analyzed from the following nine aspects:

1, LED brightness

The brightness of the LEDs varies and the price will vary.

Lamp cup: the general brightness is 60-70lm;

Bulb: The general brightness is 80-90lm.

Note: 1W brightness is 60-110lm3W brightness up to 240lm5W-300W is integrated chip, with serial/parallel package, mainly see how much current, voltage, several strings and several.

1W red light brightness is generally 30-40lm; 1W green light brightness is generally 60-80lm; 1W yellow light brightness is generally 30-50lm;

1W blue light brightness is generally 20-30lm;

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 is close to infrared

Blu-ray: 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.

6, life

The key to different qualities is life, and life is determined by light decay. Low light decay, long life, long life and high price.

7, LED chip

The illuminator of the LED is a chip, and the price of the chip varies greatly. The chips in Japan and the United States are more expensive, and the price of LED chips from Taiwanese and Chinese manufacturers is lower than that of Japan and the United States.

8, chip size

The size of the chip is expressed by the side length. The chip size is generally 38-45mΩ. The quality of the large chip LED is better than that of the small chip. The price is proportional to the chip size.

9, colloid

The colloid of ordinary LED is generally epoxy resin, and the LED with anti-ultraviolet and fire retardant is more expensive. The high-quality outdoor LED lighting should be resistant to ultraviolet rays and fire.

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