LED panel lights are now becoming popular on the market and are one of the best lighting options for indoor use due to the easy installation, stylish design and good light effect. However, many consumers might find a phenomenon that many of the panel lights purchased no more than one or two year will appear yellow. How come does it occur? And how do we choose panels that won’t get yellow?
Now let’s check out the reason behind.
In the common case, many led panel suppliers use similar led light source but the major difference is the material of LGP(Light Guide Plate), a key component of LED panel, whose material will have a significant affect on the light performance, lifespan and most importantly, the yellowing phenomenon.
There are two common types of LGP used in producing led panels.
Type1:
PS (polystyrene)
The most common material that many suppliers are using to produce LGP. It is an cheap option for LED panels. PS is easy to produce and incise with excellent chemical stability, optical transmission and insulation characteristic which can be used in a moist environment. But the most disadvantage is it will become yellow over time due to wear and tear and will get fragile due to low impact strength and bad weather resistance.
Type2:
PMMA (known as acrylic)
PMMA has very high light transmission like polystyrene, which allows light to pass through well while requiring less power with good durability. Besides, it has a high heat tolerance and resists UV light so they won’t yellow ever. Less power to achieve higher efficiency ensures the LED light source inside works well. However, the disadvantage of it is the high heat tolerance material costs more than PS. However, we have to admit that PMMA is a trouble-free material option for led panels at present.
Now I’d like to tell you Upshine LED panels are all used with high quality LGP which will not let you suffer from this situation. You can be relieved to pick the one you like without fear of this problem. The following are Upshine hot sale panels.
