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How to improve uniformity of LED lights

How to improve uniformity of LED lights

Another common problem is the low uniformity of LED lights. What is uniformity? It basically shows how even the light distribution in an area. As we can see from the above comparison, the left tennis court has low lighting uniformity. There are four observable light spots on the ground. In such the low uniformity, our eyes will not be able to see the whole ground. The uneven dim & bright lights will also fatigue our eyes because our eyes need to adapt to this change continuously.

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One of the common ways to fix this low uniformity problem is to use the LED with large beam angle. It is because the lights can spread outward the lamp. To further improve the uniformity, we can even use the secondary reflection to light up the area. For example, we can direct the flood lights upward to ceiling, and thus use the reflected lights to illuminate the indoor areas, such as home or sports field. So, you will get a highly uniform illumination because the ceiling acts like a diffuser that soften the lights. However, the limitation is that we will need more LED lights because some of the lumen is absorbed by ceiling and the light beams are scattered in different directions.

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8. Pricey LED lights

When we compare the price of LED with other light sources such as metal halide, halogen of CFL, we will find that LED is usually more expensive than other. It is because their material used and working mechanism are different. Frankly speaking, although the initial cost of buying LED is much higher, you will recognize this is not the problem because it lasts longer and saves energy!

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A common LED light has the service of 50,000 to 80,000 hours, we can compare this value with 1,000 to 2,000 hours incandescent bulbs. Plus, the power consumption of LED is approx. 1/10 of incandescent to generate the same brightness. Best LED Light Brands đèn led gia phúc