How to Choose High-Quality Through-Hole LED Chips

Release Date:

2020-11-24

　　1. Through-hole LED chip Brightness varies, and so does the price. LED chips used in LED lighting fixtures shall comply with Laser Class I standards.

　　2. Through-hole LED beads with strong antistatic properties have a long service life but come at a higher price. Typically, LED beads with an antistatic rating of over 700 V are used in LED lighting fixtures.

　　3. LED chips with the same wavelength exhibit the same color. If different colors are required, the cost is significantly higher. Manufacturers without a LED chip spectrophotometer find it extremely challenging to produce products with consistent, natural colors.

　　4. LED chips are unidirectional, current-driven light-emitting devices. If a reverse current flows, it is referred to as leakage current. LED chips with high leakage current have a shorter lifespan and are priced lower.

　　5. LED chips for different applications have varying beam angles. Specialized lighting angles come at a higher price; for example, a full diffusion angle is more expensive.

　　6. The key to differing quality lies in lifespan, which is determined by light depreciation. Lower light depreciation means longer lifespan; longer lifespan, in turn, typically comes with a higher price.

　　7. Through-hole LED chip The light-emitting element is a chip, and there is a wide price disparity among different chips. Chips from Japan and the United States are more expensive. In general, chips manufactured in Taiwan and mainland China are priced lower than those from Japan and the United States.

　　8. Chip size is specified by its side length; larger chips generally offer higher-quality LED die than smaller chips. Price is directly proportional to chip size.

　　9. The encapsulant used for standard through-hole LED chips is typically epoxy resin. LED chips with UV resistance and flame retardancy are more expensive. High-quality outdoor LED chips should feature both UV protection and fire-resistant properties.

More information

What is a light-emitting diode?

Light-emitting diodes are commonly referred to as LED beads. They are used in a wide range of applications and can be seen on streets and in alleys everywhere. For example, traffic lights at intersections remind people to obey traffic rules; remote controls transmit or receive signals; they can be used to display images on ultra-large screens; and various streetlights provide warm illumination at night. Even everyday household appliances rely on their contributions.

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.