What are the main components of the LED panel light structure?
With the development of the LED lighting industry, the LED panel light derived from LED backlight has been favored by many consumers because of its uniform light, no glare, and exquisite structure. It is a new trend of modern indoor fashion lighting. Let's take a look at the main components of LED panel lights.
1. Reflective paper
Reflect the residual light on the back of the light guide plate to improve the light efficiency, generally RW250.
2. Rear cover
The main function is to seal the LED panel light. Generally, 1060 aluminum is used, which can also play a little role in heat dissipation.
3. Drive power
There are two kinds of led drive power supply, one is to use constant current power supply, this mode has high efficiency, PF value is as high as 0.95, and the cost performance is high; the other is to use constant voltage and constant current power supply, with stable performance, but low efficiency and high cost, generally use this mode This kind of power supply is mainly exported, and the other party requires certification requirements and must use a power supply with safety regulations. In fact, it is very safe to use a constant current power supply at home, because it is difficult for users to access the power supply, and the lamp body itself uses a safe low-voltage power supply.
4. Install the pendant
Suspension wires, mounting brackets, etc. are used to install and fix accessories.
5. Panel light aluminum frame
It is the main channel for heat dissipation of LEDs. The appearance is simple and elegant. ZY0907 can be used. The cost of die stamping is low, and the processing cost is also low; the IP level of the die-cast aluminum frame can be higher, the surface texture is good, and the overall appearance is beautiful, but the cost of the mold is invested in the early stage. higher.
6. LED light source
Usually LED lamp beads use 3528, and some people use 3014 and 5050. The cost of 3014 and 5050 is low, and the light efficiency is slightly worse. The key is that the design of its light guide points is difficult. 3528 has high light efficiency and good versatility.
7. LED light guide plate
The side LED light is refracted through the dots so that the light can be exported evenly from the front. The light guide plate is the key point of the quality control of the LED panel light. If the dot design is not good, the overall light effect seen will be very poor. Generally, there will be a bright middle and dark sides on both sides, or there will be a bright light band at the incoming light, or a local dark area may be visible, or there will be inconsistent brightness at different angles. To improve the light efficiency of the light guide plate mainly depends on the design of the dots, followed by the quality of the plate, but there is no need to superstitious the first-line famous brand plate, the light transmittance between qualified plates is usually almost the same. The general small LED lamp factory directly buys the public light guide plate and uses it, so there is no need to re-proof the design. The public version used by many manufacturers is usually of qualified quality.
8. LED diffuser
The light of the light guide plate is evenly exported, and it can also play the role of blurring the dots. The diffuser plate generally uses acrylic 2.0 sheet or PC material. The PS material is almost the same. The cost of acrylic is lower and the light transmittance is slightly higher than that of PC. Acrylic is brittle and has weak anti-aging performance. powerful. After the diffuser is installed, the dots cannot be seen, and the light transmittance should be about 90%. The light transmittance of acrylic is 92%, PC is 88%, and PS is about 80%. You can choose the material of the diffuser according to your needs. Most manufacturers use acrylic materials.
