What are street lights good for?
High-pressure sodium lamps for street lighting are preferably D metal halide lamps.
From the professional point of view of lighting, incandescent lamps have the best color rendering, but low luminous flux and poor luminous efficiency. Its light-emitting principle is thermal radiation. Mercury vapor lamps, like common fluorescent lamps, are called fluorescent lamps, and the light-emitting principle is the same. It relies on gas ionization to excite phosphors to emit light. Its color rendering is low, but its luminous flux and luminous efficiency are much better than incandescent lamps; neon lights have almost no other benefits except for their good looks, and the illumination they can provide is extremely low. Lighting lamps; metal halide lamps perform very well in all aspects, especially their power can be very large and their lifespan is longer than other lamps.
Fourth, the difference between street lights and landscape lights
1. Different heights
The conventional height of street lights is 6-12 meters, and there are also some street lights with a conventional height of 6-20 meters. However, the general height of landscape lights is 3-6 meters. This is because landscape lights are ornamental and do not need to be made too high. The higher it is, the more materials are needed, and the more expensive the cost is.
2. Different lighting power
The lighting power of street lamps is generally relatively large, in the range of 250-400W, and it should be considered according to the width of the road, the surrounding trees, the height of the light pole and whether it affects the surrounding residents.
The lighting power of landscape lights is relatively small, generally 80-150W, and it may be smaller. This is because the landscape light has a basic lighting function. Its biggest function is to be more ornamental. Its light source power can reflect the overall shape of the lamp, and it does not need to be too bright.
3. Different application places
Street lights are generally used in urban or rural main roads, secondary roads, city squares, communities and other places, and the lighting needs are generally larger.
Landscape lights are generally installed in independent areas, such as parks, gardens, high-end communities, commercial pedestrian streets and leisure squares. Landscape lights will also appear in many tourist attractions.
4. Different functions
The main function of road lights is lighting, which should be able to provide better lighting brightness for pedestrians and vehicles. However, landscape lights only need basic lighting. The most important thing is ornamental, which is used to decorate the surrounding environment and create an atmosphere.
The shapes of street lamps are not so diverse, generally only a few. However, there are many shapes of landscape lights, which are very random and unconstrained. It can be customized according to the surrounding environment and special reasons.
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