Detailed explanation: High-power LED lamp beads and LED point light source selection skills

The selection of high-power LED lamp beads and LED point light sources should be analyzed from the following 9 aspects:

1. LED brightness

The price of LEDs will vary depending on the brightness of the LEDs.

Lamp cup: general brightness is 60-70lm;

Bulb: general brightness is 80-90lm.

Note: 1W brightness is 60-110lm, 3W brightness can reach up to 240lm, 5W-300W is an integrated chip, packaged in series/parallel, mainly depending on the current, voltage, and number of strings and parallels.

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

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

LED lens: Primary lenses are generally made of PMMA, PC, optical glass, silicone (soft silicone, hard silicone), etc. The larger the angle, the higher the light efficiency. With a small-angle LED lens, the light will be emitted farther.

2. Antistatic ability

LEDs with strong antistatic ability have long life and are therefore expensive. Usually, only LEDs with antistatic ability greater than 700V can be used in LED lighting.

3. Wavelength

LEDs with consistent wavelengths have consistent colors. If you require consistent colors, the price will be high. It is difficult for manufacturers without LED spectrophotometers to produce products with pure colors.

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

Red light: Band 600-680, of which 620 and 630 are mainly used for stage lights, and 690 is close to infrared

Blue light: Band 430-480, of which 460 and 465 are more commonly used in stage lights.

Green light: band 500-580, of which 525 and 530 are more commonly used in stage lights.

4. Leakage current

LED is a unidirectional conductive light source. If there is a reverse current, it is called leakage. LEDs with large leakage current have short life and low price.

5. Lighting Angle

LEDs with different uses have different light-emitting angles. Special light-emitting angles have higher prices.

6. Lifespan

The key to different quality is lifespan, which is determined by light decay. Small light decay means long lifespan, while long lifespan means high price.

7. LED chips

The light source of LED is chip, and the price of different chips varies greatly. Chips from Japan and the United States are more expensive, while 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 large chip LEDs is better than that of small chips. The price is proportional to the chip size.

9. Colloid

The colloid of ordinary LEDs is generally epoxy resin. LEDs with anti-UV and fire retardants are more expensive. High-quality outdoor LED lighting should be anti-UV and fireproof.