What are the adverse phenomena of LED panel lights in the current market?
The LED panel light reflects the highest level of lighting application of "seeing the light but not the light". It has the advantages of uniform light distribution, soft and comfortable, clean and bright, and has the advantages of anti-mosquito, anti-smoke, anti-fog and easy to clean; its shape is simple and easy to integrate with the ceiling module, so it is suitable for integrated ceilings, especially in complex environments and space. It has great application advantages in small bathroom and kitchen plates. At the same time, LED panel lights also have many characteristics such as low power consumption, energy saving and environmental protection, long life, economical use, fashionable technology, convenient application, etc., which are deeply loved by modern consumers.
Here, let us dissect the bad phenomenon of LED panel lights in the current market from a technical point of view.
1. First of all, let's analyze the characteristics of LED light source devices currently used in LED panel lights because of their small size, suitable power, high light efficiency, easy light control and heat dissipation.
Second, let's analyze the driving power supply that is also the core component. Since the LED lamp bead is a low-voltage startup semiconductor device, the most basic requirement is to use a matching low-voltage power supply to drive, and to require a continuous and constant current (excessive current exists The light decays quickly, and the lamp becomes extremely dim or even burns out after a long time).
At present, there are three main technical solutions for LED drive power supply:
1. Resistor-capacitor step-down: the scheme is simple, the device is few, the cost is low, and the current is not constant. It is mainly used in the configuration of 3W and below LED lamps, and there is a danger of breaking down the lamp board and causing leakage. Therefore, the structural shell of the lamp body must be insulated.
2. Non-isolated power supply: moderate cost, constant current of IC, but there is also the danger of breaking down the lamp board and causing leakage, so the structural shell of the lamp body must be insulated.
At the same time, for the same isolated constant current power supply, there are also advantages and disadvantages such as whether the scheme is reasonable, whether the configuration is comprehensive, whether the device is stable, whether the circuit is scientific, and whether the process is rigorous.
In terms of process, the high-quality driver of the standard manufacturer adopts automatic patch and automatic wave soldering, without confusion and false soldering, which cannot be satisfied by the workshop process of inferior products.
