COB light source VS LED lamp beads, which one is the real energy-saving king?

At a time when energy conservation and environmental protection have become a global consensus, technological innovation in the field of lighting is also constantly contributing to the realization of "green life". As two mainstream energy-saving light sources on the market, COB light sources and LED lamp beads have attracted much attention for their characteristics and advantages and disadvantages. Today, let's explore the duel between them in terms of power consumption to see which light source is more in line with the needs of energy saving. COB light source, that is, chip-on-board technology, directly encapsulates multiple LED chips on a substrate to form a large-area, high-brightness luminous surface. Due to the integration of its packaging technology, COB light sources have advantages in volume and luminous efficiency. LED lamp beads usually refer to individually packaged small LED light sources, each of which contains one or more LED chips and can be used in combination to provide a higher brightness lighting effect. In terms of power consumption performance, we might as well compare from the perspectives of power and light efficiency.

Taking the common product specifications on the market as an example, a typical application of COB light sources is a 100W model with an operating voltage of 220V, while LED lamp beads of the same wattage may have different current and voltage requirements. This means that although the power of the two is similar, the different requirements for power supply in actual circuit design may affect the overall energy consumption. Let's look at the light efficiency, that is, the luminous flux emitted per watt.

COB light sources can emit a large amount of light in a small area due to their dense packaging characteristics. This design improves the efficiency of energy use to a certain extent. In contrast, although the brightness of LED lamp beads is lower when used alone, similar effects can be achieved by combining multiple beads. In addition, the heat dissipation of LED lamp beads is usually better than that of COB light sources, and the overheating problem is smaller, which also indirectly improves energy efficiency. Next, let's further analyze by comparing actual test data. In the same application scenario, such as for home lighting, COB light sources and LED lamp beads are lit according to their standard settings, and the power consumption of both is recorded for a certain period of time. The results show that while maintaining high brightness, the power consumption of COB light sources is slightly lower than that of LED lamp bead combinations at the same brightness, which is mainly due to the high integration and low heat loss of COB light sources.

Power consumption is not the only factor that determines energy saving. Different choices of parameters such as brightness and color temperature will also affect power consumption. For example, a light source with a higher color temperature may bring better light efficiency, but it may also increase energy consumption. Therefore, when choosing a light source, we should consider the actual application requirements and make a reasonable trade-off. Both COB light sources and LED lamp beads have their own characteristics and advantages in energy saving. COB light sources show good energy efficiency performance due to their high integration and low heat dissipation requirements; LED lamp beads are widely used due to their flexible combination and excellent heat dissipation performance. The final choice should be based on the specific application scenario and lighting needs. Only the right one is the best.