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What kind of lamp beads are used in LED car lights? What is the material of LED lamp beads?

By, CoolMotor

• 2023-12-05
• 41 View

LED headlights have become a popular choice in modern car design. Compared with traditional halogen headlights or xenon headlights, LED car lights have higher energy efficiency, longer life and better lighting effects. However, have you ever wondered what kind of lamp beads are used in LED car lights? Let us uncover this mystery together and explore the materials and characteristics of LED lamp beads.

Article table of contents introduction:

1. LED car light bead material

2. Is it okay to use COB for car LED headlights?

3. Is it better to have an LED car light with 6 beads or 12 beads?

4. What are LED headlights?

5. Original car headlight LED lamp bead model

LED car light bead material

1. High-power LED lamp bead PC lens

Optical grade material Polycarbonate (PC for short) polycarbonate. Plastic materials have high production efficiency and are produced through injection molding and extrusion.

2. High-power LED lamp bead silicone lens

Silica gel, silicate gel is a highly active adsorption material, which is an amorphous substance. Because silica gel has high temperature resistance (can also be reflow soldered), it is usually used to be directly packaged on LED chips. Generally, silicone lenses are smaller in size. , diameter 3-10mm.

3. High-power LED lamp bead glass lens

The main advantages of optical glass materials are that the light transmittance can be as high as 97% and high temperature resistance. However, it also faces factors such as single product shape, fragility, difficulty in mass production, low production efficiency, and high cost.

4. High-power LED lamp beads PMMA lens

PMMA (acrylic plastic), the chemical name is polymethylmethacrylate, commonly known as plexiglass, Hong Kong and customary PMMA is called acrylic.

Is it okay to use COB for car LED headlights?

There are three main types of lamp beads on the market. The first type is COB lamp beads. However, it is not recommended that you choose COB. There are two reasons.

A: Due to structural problems, COB lamp beads generally have a poor lifespan when used in the field of automotive lights. Currently, the lifespan of COB lamp beads in industry applications is generally only about two months.

B: Due to the principle of its luminescence, COB lamp beads have a large area and circular shape, which determines that it is difficult to focus light.

Is it better to have 6 led car lights or 12 led car lights?

LED car lights with 6 beads are good.

1, the color and structure of LED car lights 6 beads are more stable

2, LED car lights and 6 lamp beads are all made of green, low-carbon and environmentally friendly materials.

3, the service life is longer

What are LED headlights?

What is used is LED high-brightness luminous body, which is a special LED lamp bead. LED lamp bead is the English abbreviation of light-emitting diode, LED, which is a popular name. These two actually mean the same thing.

LED lamp beads are semiconductor materials that emit light directly after being energized. They do not heat up first and then emit light like traditional light sources, or rely on excited electrons to make phosphors emit light. The advantage is that they generate very little heat and have extremely high luminous efficiency. More importantly, they can only Direct current is used to emit light normally, so the light it emits is absolutely flicker-free and is the closest artificial light source to natural light. LED lights are lamps that use it as a light source. To sum up, the most important advantages are three: energy saving and lifespan. Extremely long and least damaging to eyes.

Original car headlight LED lamp bead model

Differentiation of car lamp bead models

H1 is single-filament and single-legged, mostly used for high beam.

H7 is a monofilament double-footed lens, mostly used for low beam.

Some fog lights of H1 and H7 can also be used.

H3 is a special type, generally used in Japanese cars and rarely used in other cars.

H4 is a two-wire three-pin bulb. The low beam and high beam are both in one bulb. The standard is low beam 55W, high beam 60W or low beam 90W and high beam 100W. Motorcycles are generally H4, with 35W for both far and near, or 35W for far and 25W for near.

The most commonly used ones are far H1, near H7, fog H7, or just a single H4 light.

With the continuous advancement and innovation of technology, the development prospects of LED car lights are very broad. The continuous improvement and optimization of LED lamp bead materials will further improve the performance and reliability of LED car lights. Whether it is higher brightness, wider illumination range or more energy-saving design, LED car lights will bring drivers a safer and more comfortable driving experience. It is believed that in the future, LED car lights will continue to play an important role in the automotive industry, injecting more creativity and innovation into the appearance and lighting systems of cars.