Acrylic light transmittance is 92%, PC is 88%, and PS is about 80%. After installing the diffusion plate, the dots cannot be seen, and the light transmittance should be about 90%. The price of PC is slightly expensive, but aging resistance Strong. Acrylic is brittle and has weak aging resistance. Acrylic has a lower cost and a higher light transmittance than PC. The diffusion plate generally uses acrylic 2.0 sheet or PC material. The light of the light guide plate is evenly led out, and it can also play a role of blurring the dots. The public version used by many manufacturers is usually qualified. Generally, small LED lamp factories directly buy common light guide plates for use, so there is no need to re-proof the design. ![]() The light transmittance between qualified plates is usually almost the same. To improve the light efficiency of the light guide plate mainly depends on the design of the outlet, followed by the quality of the plate, but there is no need to superstition the first-line brand plate. Generally, there will be dark sides in the middle, or there will be bright bands in the light entrance, or local dark areas may be visible, or inconsistencies in brightness at different angles. If the dot design is not good, the overall light effect will be very poor. The light guide plate is the key point of the quality control of the LED panel light. The side LED light is refracted through the dots so that the light is uniformly led out from the front. 3528 has high luminous efficiency and good versatility. The key is that the design of the light guide network is difficult. The cost of 30 is low, and the light efficiency is slightly worse. ![]() Usually 3528 is used for LED lamp beads, and 30 are also used by others. The IP level of the die-cast aluminum frame can be higher, the surface texture is good, and the overall appearance is beautiful. The stamping cost of mold opening is low, and the processing cost is also low. It is the main channel for LED heat dissipation.
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