What is COB lens and purchasing skills?

When is a COB lens? COB LED spotlight is a spotlight with COB LED light source as the light source. Traditional spotlights mostly use halogen lamps and high-power LEDs. Halogen lamps have low luminous efficiency, relatively power consumption, elevated ambient temperature, and short service life; while high-power LEDs have strong local luminous efficiency, uneven light spots and dark spots. place. LED is far superior to traditional lighting products in terms of light-emitting principle, energy saving and environmental protection. Moreover, the unidirectionality of the LED lamp forms a perfect support for the light distribution of the spotlight.

The main advantages of COB

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

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

3. Dimmable: The previous dimmers have been for incandescent lamps. When incandescent lights dim, the lights turn red; it's hard to see fluorescent lights dim.

4. Lamp, this is the main reason why dimming technology has not developed for many years; LED can be dimmed again, and the light and dark colors are the same color (the color temperature is basically unchanged), which is obviously better than the dimming of incandescent lamps.

5. Frequent switching: The life of the LED is calculated according to the lighting time. Even if it is switched on and off thousands of times per second, it will not affect the life of the LED. For occasions that require frequent switching, such as decorations, LED lights have advantages.

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

7. Low calorific value: Many 220V spotlights, like spotlights, will be damaged by heat after a few days of use.

COB lens purchasing skills

The colloid of ordinary LED is generally epoxy resin. LEDs with UV resistance and flame retardants are more expensive. High-quality outdoor LED lighting should be UV-resistant and fire-resistant. Each product will have a different design. Different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, applicable environmental safety, mechanical safety, health safety, safe use time and other factors. From the point of view of electrical safety, it should comply with relevant international and national standards.