From the high pressure sodium lamp to the current LED street lamp, people's research on street lamp has been progressing, and the various requirements for street lamp are also improving. Good road lighting and light distribution design can bring a pleasant visual effect. Speaking of light distribution, let's talk about street lamp lenses.

LED street lamps are common public facilities in daily life, and the requirements for their appearance and optical parameters are getting higher and higher. The traditional high pressure sodium lamp has an illumination Angle of 360° and emits light in all directions, which wastes a lot of light effect. LED street lamps usually emit light in one direction, and the illumination Angle is usually 120°. But the lens needs to intervene to make the illumination Angle of the street lamp wider or narrower.

The function of a lens is to distribute light in a targeted way, rather than uniformly throughout the space. Good lenses allow light to be controlled, shine where needed, reduce glare, make light more healthy and comfortable, and provide a colorful lighting environment for life.

How to choose between solar street lamp and mains LED street lamp

LED street lamps are used to light urban and rural roads. LED street lamps have the unique advantages of high efficiency, safety, energy saving, environmental protection, long life, fast response and high color rendering index, which can be widely used in roads. So how do you choose between solar street lights and commercial street lights?

Solar street lamps effectively utilize solar energy resources and are more energy efficient, so they can be used in places where mains cables cannot reach, such as remote mountainous areas. The downside is that the project will cost more because of the need to add solar panels and batteries. At the same time, because the solar street lamp is powered by battery, the power is not too large, so the investment cost is relatively high to meet the requirements of long-term high power and high light efficiency.

The street lamp is powered by the mains cable, and the current is stable to ensure high-power lighting. At the same time, through PLC technology, the utility cable will be used to compose the street lamp system into the Internet of things, to achieve remote control and data optimization, the overall engineering cost of LED street lamp is low.