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Driver-free COB LEDs, also known as Chip-on-Board LEDs, are an LED lighting technology that does not require traditional LED drivers. Driver-free COB LEDs work by integrating multiple LED chips directly onto a circuit board, resulting in a compact and efficient lighting solution.
Here's the gist of how it works:
1. LED chip integration: Multiple LED chips (often of the same or different colors) are placed closely and bonded directly to the circuit board. This integration eliminates the need for a separate LED package, reducing the overall size and cost of the LED module.
2. Direct power supply: Driver-free COB LEDs are designed to be powered directly by a suitable voltage source, such as a constant current power supply, instead of using an external LED driver. The integrated LED chips are connected in parallel or series configurations to meet input voltage requirements.
3. Thermal management: Heat dissipation is an important aspect of LED performance and lifetime. Driver-free COB LEDs typically integrate a heat sink or thermal management system directly into the board. This helps to dissipate heat efficiently, ensuring optimal operating conditions for the LED chips.
4. Luminaire design: Due to the compactness of the driver-free COB LED, the luminaire design can be simplified. Lighting fixtures are sleeker and lighter without bulky LED drivers. In addition, the LED chips on the circuit board are placed in close proximity, which increases light uniformity and improves color mixing.
5. Control and Dimming: Driver-free COB LEDs can be controlled and dimmed using compatible dimming systems. By adjusting the input voltage or current, the brightness of the LED module can be varied, providing flexibility for lighting applications.
In general, the working principle of the driver-free COB LED is to integrate multiple LED chips into one circuit board without a separate LED driver. This approach offers advantages such as compactness, improved thermal management and simplified luminaire design, while maintaining efficient and reliable lighting performance.
Shenzhen Aihongyang Lighting Co., Ltd. is a high-tech energy-saving company specializing in the production of COB LED planar light sources. The company has 6 automated production lines with a daily output of 400K. The main advantageous products are LED lighting matrix packaging and LED lighting lamps. The company relies on LED With many years of experience in LED application in the electronic packaging industry, we have a production team developed by experts, masters and senior engineers. Products and services, dedicated to the application of LED T5, T8, T10 fluorescent lamps, LED ceiling lamps, LED bulb lamps, LED spotlights, LED downlights and other lamps; dedicated to LED light sources and products with low light decay and long life services. Continuous innovation in LED application products. The enterprise adheres to the principle of "integrity and sustainability", treats products with monographs, treats customers with sincerity, and acts as a model of honest management with the determination to build a century-old enterprise. Realize the perfect combination of the company's planar light source and traditional lamps, and contribute high-quality and low-cost products to the LED industry.