How to judge the LED light source, what are the main characteristics?

The main features are:

1. The brightness of the LED is different. LEDs used in LED luminaires should meet the laser class standards.

2. Antistatic ability: LEDs with strong antistatic ability have a long life, so they are high. Usually the antistatic is greater than 700V LEDs can be used for LED lighting.

3. LED with the same wavelength and wavelength has the same color, if the color is required to be consistent, it is high. It is difficult for manufacturers without LED spectrochromators to produce products with pure colors.

4. Leakage current LED is a unidirectional conductive luminaire, if there is a reverse current, it is called leakage, and the LED with large leakage current has a short life and low life.

5. The luminous angle of LEDs with different uses is different. Special light angle, ** high. For example, the full diffuse angle is higher.

6. The key to different qualities of life is life, which is determined by light decay. The light decay is small, the life is long, the life is long, and the light decay is high.

7. The light-emitting body of the chip LED is the wafer, and different wafers are very different. Chips in Japan and the United States are more expensive, and generally Taiwanese and domestic chips are lower than those in Japan and the United States.

8. The size of the wafer is expressed by the side length, and the quality of the large wafer LED is better than that of the small wafer. **Proportional to wafer size.

9. The colloidal body of ordinary LED is generally epoxy resin, and the LED with anti-ultraviolet and fire-retardant is more expensive, and high-quality outdoor LED lighting should be anti-ultraviolet and fireproof. Each product will have a different design, different designs are suitable for different purposes, the reliability design of LED decoration includes: electrical safety, fire safety, applicable environmental safety, mechanical safety, health safety, safe use time and other factors.

From the perspective of electrical safety, it should comply with relevant international and national standards.

In fact, I don't think there's anything to judge here, it's nothing more than to look at the power, light effect, and light characteristics! But this is not the most important thing, I think the most important thing is to see if it is worth the price, whether it is cost-effective, this is the king! One of my top businessmen is called Yuanlei Technology, and the cost performance is still quite high.

1, light effect; (How many lumens of light can be emitted by a watt).

2. Color rendering index: above 80 to 100. (indicates the degree of reproduction of color).

It mainly depends on the luminous flux of the light source, color temperature, color rendering index, and power.

How to tell what the light source is in the LED light Hello, dear, according to the situation you described, the color temperature above 6500K generally belongs to the warm light of the cold light is the yellowish light, and the cold light is the white light. The cold light or warm light of the LED light depends on the color temperature, you can make it clear when you buy it, or you can know it when you light it up, and the cold light is generally white light. Cold and warm light are mainly determined by the color temperature of the light source.

Cold light: When the color temperature exceeds 5000K, the color is blue, giving people a cool feeling. That's why it's called cold light.

When the color temperature is below 3000K, the color of the agricultural products has a reddish phenomenon, giving people a warm feeling The way to distinguish the warm light and cold light of LED lights is; 1. The color temperature of cold light is 6000K-6500K, and the color is whitish, which is the white color of the fluorescent lamp now. The color temperature of warm light is 3000K-4000K, and the color is yellow, which is the color of the current incandescent lamp. 2. LED light-emitting diode is a solid-state semiconductor device that can convert electrical energy into visible light, which can directly convert electricity into light.

The heart of an LED is a semiconductor wafer with one end attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire wafer is encapsulated by epoxy resin.

Reading guide] Unlike incandescent lamps and high-pressure sodium lamps, which are very traditional lamps, LED light sources do not have the shortcomings of thermal radiation and corresponding gas discharge light sources. On the contrary, the many advantages of LED point light source make it not only well reused in lighting, but also in decoration and warning. So what are the advantages of this type of light source?

Let's introduce the characteristics of LED point light sources.

Through actual verification and summary, we have come to the following conclusions. The first point is that the LED light source is small and lightweight, plus it can be used with many lamps, which are not available in other lamps.

LED light source.

The second point is that the LED point light source has good environmental protection. LED light sources do not contain metallic mercury and do not cause mercury pollution when discarded. In addition, even if it is discarded, it can be used, which can be environmentally friendly and resource-saving.

The third point is that the LED point light source has good safety and stability. The LED light source can be driven by direct current at six to twenty-four ford voltages, making it safe and suitable for public use. In addition, under the same conditions, compared with conventional light sources, LED light sources have low light attenuation and can be used for a long time, and can withstand frequent switching.

LED light source.

The fourth point is that the LED light source has good shock and impact resistance. The LED light source itself uses the principle of semiconductor luminescence, and its structure is composed of epoxy resin surrounding the lead frame. It does not contain glass, nor does it need to be vacuumed or filled with a specific gas.

It can be seen that the LED light source has good seismic and impact resistance, which brings convenience to production and transportation.

The fifth point is that the LED light source has a good directivity, it can send out light in a directional direction and directly hit the surface of the illuminated object, and the utilization rate is high. In the process of continuous research and development of LED lighting-related technologies, the efficiency of its luminescence has increased tenfold, but this is far from the upper limit.

LED light source.

The sixth point is that the LED point light source has a fast response time. LED light sources have nanosecond response times, which are much better than ordinary lamps.

The seventh point is that the LED point light source has a very rich light color, which uses different means such as chemical modification and monochromatic light mixing to achieve the effect of light emitting and changing color in the visible light band of a variety of colors. These effects have a nice eupi rock flutter in both decoration and lighting.

LED light source.

Through the above introduction, we can basically cover some good advantages and characteristics of LED point light sources. We can't deny this advantage, so we have set the goal of continuous research and development. Like its adjustable brightness, as well as the flicker-free performance, we need in practical applications.

You can get it for free

The relationship between the intensity and the distance to the light source is inversely proportional to the square. The inverse square consciousness is that if point B is twice as far away from the light source as point A, then the intensity of the light received by point B is one-fourth of that of point A.

According to the relationship between the light source and the object, the position of the light source can be divided into four basic types of lighting, including natural lighting and artificial lighting.

Small efficacy, small size, long life, easy to drive, environmental protection and so on.