Components of LED panel lights

1. Aluminum frame for LED panel light:

It is the main channel for LED heat dissipation. The appearance is simple and generous. It uses die stamping to open the mold. The IP grade of the die-cast aluminum frame can be higher, the surface texture is good, and the overall appearance is beautiful.

2. LED light source:

Generally, SMD 2835 and SMD 4014 are used for LED lamp beads, and the light efficiency is high and the versatility is good.

3. LED light guide plate:

The side LED light is refracted through the dots so that the light is uniformly led from the front. The light guide plate is the key point of the quality control of the LED panel light. The design of the dots is not good, and the overall light effect is very poor. Generally, the two sides of the middle light are dark, or there is a bright light band at the light entrance, or the local dark area is visible, or the brightness inconsistencies at different angles appear. 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 superstitize the first-line brand plates, and the transmittance between qualified plates is usually not much different. Generally, small LED lamp factories directly buy public light guide plates for use, so there is no need to re-proof the design. The public version used by more manufacturers is usually of good quality.

4. LED diffuser:

The light from the light guide plate is evenly exported, and it can also play a role of blurring the dots. The diffuser plate generally uses acrylic 2.0 sheet or PC material. The PS material is almost. The cost of acrylic is lower and the light transmittance is slightly higher than that of PC. The acrylic brittleness and anti-aging performance are weak. The price of PC is slightly expensive, but the anti-aging performance Strong. After the diffuser plate is installed, the dots cannot be seen, and the light transmittance should be about 90%. The acrylic light transmittance is 92%, the PC is 88%, and the PS is about 80%. You can choose the material of the diffuser according to your needs. Most manufacturers use acrylic materials.

5, reflective paper:

Reflect the residual light on the back of the light guide plate to improve the light efficiency.

6. Rear cover:

The main role is to seal the LED panel light, generally using 6063 aluminum, can also play a little role in heat dissipation.

7. Driving power:

There are two types of LED drive power. One is using a constant current power supply. This mode has high efficiency, PF value is as high as 0.95, and high cost performance. The second is the use of constant voltage and constant current power supply, which has stable performance, but low efficiency and high cost. This type of power supply is mainly for export. The other party requires certification requirements and must use a power supply with safety regulations. In fact, it is very safe for households to use constant current power supply, because users are difficult to access the power supply, and the lamp body itself uses safe low-voltage power.

8. Install the pendant:

Suspension wires, mounting brackets and other accessories used to install and fix.

From the perspective of quality control, it is most effective to spend additional money on LED light sources and LED light guides in order to improve the light efficiency. From the perspective of marketing, the additional money is spent on aluminum frame cover pendants, etc. Can improve product quality.

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