What are the main advantages and purchasing skills of COB lenses?

COB spotlights are spotlights that use COB LED light sources as light sources. Moreover, the unidirectionality of LED light emission forms a perfect support for the light distribution of spotlights. Traditional spotlights mostly use halogen lamps and high-power LEDs. Halogen lamps have low luminous efficiency, relatively power consumption, rising ambient temperature, and short service life; while high-power LEDs have local light effects that are too strong, uneven light spots, and dark place. The following will introduce the main advantages of COB lenses and the content of purchasing skills. Welcome to read!

The main advantages of COB lens:

1. Energy saving: LED lamps of the same power consume only 10% of the electricity of incandescent lamps, which are more energy-efficient than fluorescent lamps.

2. Long lifespan: LED lamp beads can work for 50,000 hours, which is longer than fluorescent lamps and incandescent lamps.

3. Dimmable: The previous dimmer has always been aimed at incandescent lamps, and the dimming timeline of incandescent lamps is red; it is difficult to see fluorescent lamps.

4. Light device, this is the main reason why dimming technology has not developed for many years; LED can be dimmed, and whether it is bright or dark, it is the same color (basically does not change color), which is obviously better than incandescent lamps.

5. Frequent switching: The life of the LED is calculated according to the time it is turned on. Even if it is switched on and off thousands of times per second, it will not affect the life of the LED. In the occasions that need to be frequently turned on and off, such as decoration, LED lights have absolute advantages.

6. Rich colors: there are positive white light, warm white light, red, green, blue and other colors, whether it is the small lights next to the headlights in the living room or the neon lights, they are very bright.

7. Low calorific value: Like spotlights, many 220V spotlights break down within a few days because of heat.

COB lens purchasing skills:

1. The LED brightness (MCD) is different, and the price is also different. The LEDs used in LED lamps must meet the first-class laser grade standards. 2. LEDs with strong anti-static ability have strong anti-static ability and long life, so they are expensive. Generally, anti-static LEDs are above 700V and can be used in LED lamps.

2. The LEDs with the same wavelength have the same color. If the same color is required, the price will be high. Manufacturers that do not produce LED spectrophotometers have difficulty producing products with pure colors.

3. Leakage current LED is a one-way conductive light-emitting body. If there is a reverse current, it is called leakage and leakage LED, which has a short life and low price.

4. Lighting angle The light-emitting angle of LEDs with different uses will be different. Unique lighting angle, expensive. If the angle is fully scattered, the price is higher.

5. The key to different quality of life is life, and life is determined by light decay. Low light decay, long life and high price.

6. The light-emitting diodes of chip LEDs are chips. Different chips have different prices. Japanese chips and American chips are more expensive. Generally, the prices of Taiwanese chips and domestic chips are lower than those of Japan and the United States.

7. The size of the chip is represented by the side length, and the quality of the large chip LED is better than that of the small chip LED. The price is proportional to the size of the chip.

8. Colloid The colloid of ordinary LED is generally epoxy resin. The price of LED with anti-ultraviolet and fire-proof agent is relatively expensive. High-quality outdoor LED lighting should be anti-ultraviolet and fire-proof. The reliability design of LED lighting includes: electrical safety, fire protection, applicable environment, mechanical safety, health and safety, time safety, electricity safety, electricity safety, electricity safety, and time safety. In terms of electrical safety, it should comply with relevant international and national standards.