Introduction of COB LED
COB LED refers to an innovation in chip packaging technology. Its full name is Chip On Board LED, and its Chinese translation is chip package LED. COB LED is a high-power, high-brightness LED lamp bead. Compared with traditional SMD LEDs, COB LEDs have the advantages of higher brightness, higher efficiency, lower thermal resistance, and better color uniformity. The packaging method of COB LED is to integrate multiple LED chips on a silicon substrate, and then use conductive adhesive to stick it on the heat sink, so that the LED light is more uniform and stable, and it is easier to install and maintain.

Among COB LED products, the most common ones are 10W, 20W, 30W and other power COB LEDs, which are usually used in indoor lighting, outdoor lighting, car lights, flashlights and other products. "
"Common COB LED specifications:

     Size: Common COB LED sizes include 10mm x 10mm, 20mm x 20mm, 30mm x 30mm, etc.

     Power: The power of COB LEDs is usually between 1 watt and 200 watts, the higher the power, the brighter it is.

     Color: COB LEDs can emit light in different colors, including red, green, blue, yellow, white, etc.

     Color temperature: The color temperature of COB LEDs is usually between 2700K and 6500K. Different color temperatures correspond to different light colors, such as warm white, natural white, cool white, etc.

     CRI: The color of COB LED will also affect its color reproducibility. The commonly used color rendition index is CRI. Generally, for applications requiring high color rendition, CRI is required to be 80 or above.