What are the tips for selecting LED chips?

Release Date:

2022-01-12

　　 LED light bead What are the selection techniques?

　　1. Brightness: LED brightness varies, and so does the price. LEDs used in LED lighting must comply with laser safety classification standards.

　　

LED light bead

 

　　2. Antistatic Performance: LEDs with strong antistatic properties have a longer service life, which is why they are more expensive. Generally speaking, LEDs with an antistatic rating of over 700 V can be used for LED lighting.

　　3. LEDs with consistent wavelengths exhibit consistent color; if color consistency is required, the price will be higher. Manufacturers without LED spectrometers find it difficult to produce products with pure, uniform colors.

　　4. Leakage current: An LED is a unidirectional light-emitting device; if reverse current flows, it is referred to as leakage. LEDs with high leakage current have a short lifespan and are inexpensive. LED chip

　　5. LED luminous angles vary depending on the application; different luminous angles correspond to different applications. Specialized luminous angles tend to be more expensive—for example, those with a fully diffused beam angle are relatively costly.

　　6. The key to differing quality of life is lifespan, which is determined by the rate of light degradation. Mild degradation results in a longer lifespan, and a longer lifespan comes with a higher price.

　　7. The cost of LED chips varies significantly depending on the chip type and manufacturer. Chips from Japan and the United States tend to be more expensive, while chips made in Taiwan and domestically produced chips are generally less costly than their Japanese and American counterparts.

　　8. Chip Size: Chip size is expressed in terms of edge length; larger-chip LEDs generally offer better quality than smaller-chip LEDs. Price is directly proportional to chip size. LED lamp beads

　　9. The encapsulant used in standard LEDs is typically epoxy resin. LEDs formulated with UV stabilizers and flame retardants are more expensive, as high-quality outdoor LED lighting must be resistant to UV radiation and meet stringent fire-safety requirements.

　　 LED light bead All are known as semiconductor light-emitting diodes, which are made from semiconductor materials and directly convert electrical energy into light—essentially transforming electricity into optical signals. They boast low power consumption, high brightness, vibrant colors, strong vibration resistance, long service life (typically 80,000 to 100,000 hours of continuous operation), and cool light emission, making them a truly “green lighting” solution. In the 21st century, decorative products that use LEDs as their light source are poised to replace traditional incandescent lamps, ushering in another revolution in human illumination.

　　What are the specifications of LED light beads?

　　1. Brightness

　　LED chip brightness varies, and so does the price.

　　Incandescent bulb: typical luminous flux is 60–70 lm. Globe bulb: typical luminous flux is 80–90 lm.

　　A 1W red LED typically has a luminous flux of 30–40 lm. A 1W green LED typically has a luminous flux of 60–80 lm. A 1W yellow LED typically has a luminous flux of 30–50 lm. A 1W blue LED typically has a luminous flux of 20–30 lm.

　　Note: A 1W LED has a luminous flux of 60–110 lm; yes. A 3W LED with a luminous flux of 240 lm corresponds to 5W–300W in terms of integrated chips, which are packaged in series or parallel configurations; the key factors to consider are current, voltage, and the number of strings.

　　LED lenses: Single-element lenses are typically made from materials such as PMMA, PC, optical glass, and silicon (both soft and hard silicon). The larger the beam angle, the higher the lighting efficiency; light emitted through a narrow-angle LED lens can travel farther.

　　2. Wavelength.

　　Consistent wavelength and color. Higher price. For white light, warm white (color temperature 2,700–4,000 K), neutral white (color temperature 5,500–6,000 K), and cool white (color temperature above 7,000 K) are preferred; Europeans tend to favor warm white.

　　Red: 600–680 nm; among these, 620 and 630 nm are primarily used for stage lighting, while 690 nm is close to the infrared range. LED light beads.

　　Blue light: band 430–480 nm, with a greater emphasis on 460 and 465 nm stage lights.

　　Green light: band lights range from 500 to 580 nm, with 525 nm and 530 nm being more commonly used for stage lighting.

　　3. Viewing Angle

　　LEDs for different applications have different beam angles. Special beam angles come at a higher price.

　　4. Antistatic capability.

　　LED chips with strong antistatic properties have a long service life, which is why they are more expensive. In general, LED bulbs with an antistatic rating of over 700 V can be used in LED lighting applications.

　　5. Leakage current.

　　LED chips are unidirectional, current-driven light-emitting devices; if reverse current flows, it indicates leakage, and LEDs with significant leakage current have a short lifespan and are low-priced.

 

More information

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What are the tips for selecting LED chips?

1. Brightness: LED brightness varies, and so does the price. LEDs used in LED lighting must comply with laser safety classification standards.

What factors influence the price differences of LED light beads?

LED chips are a well-known product in the LED industry; however, many people are less familiar with their pricing. What causes such wide variations in LED chip prices? Below, we will outline the factors that influence LED chip prices.

What is the light-emitting principle of LED chips?

An LED chip is a light-emitting diode, and an LED bulb is simply the common, colloquial term for an LED.

Are you familiar with full-color LED chip-on-board modules for side mounting?

The brightness of full-color LED surface-mount devices is closely related to the LED’s viewing angle. The narrower the viewing angle, the higher the brightness; moreover, differences in manufacturing processes can lead to significant variations in service life. For a 5-mm LED with a 180-degree viewing angle, the white-light luminous intensity is only a few hundred mcd, whereas for a 15-degree viewing-angle LED, the luminous intensity exceeds 10,000 mcd. When high-power LEDs are used outdoors, the brightness is even greater. Single-power LEDs include 1 W, 3 W, and 5 W models; some high-power LEDs can be combined to form a single high-power LED with output up to several hundred watts. Color temperature is independent of brightness, but brightness is directly related to the lumen value.

Key Considerations for Full-Color SMD LEDs on the Side

Side-view full-color LED chips, also known as surface-mount LEDs, are a type of simple lighting device. Their light-emitting principle is based on passing an electric current through a compound semiconductor; when electrons and holes recombine, the excess energy is released in the form of light, thereby producing illumination.