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In our daily life, we can see that there is only one light pole, but on both sides of the road, we can see that some light poles will extend two arms at the top, and install two light heads to illuminate the road on both sides. This type of light is called a double arm light. Street lights can be divided into single-arm street lights and double-arm street lights according to their shapes. So what is the difference between single-arm street lights and double-arm street lights?
One-arm lights are the most common type of street light. It has only one arm and smooth welding. After forming, it is treated with anti-corrosion hot-dip galvanizing and spraying. It looks beautiful, simple and smooth. It is usually installed on both sides of adjacent river courses, ramps or wider pavements to illuminate road conditions and induce safe driving.
Due to different light sources, single-arm lights can be divided into ordinary sodium lamp single-arm street lights, energy-saving single-arm street lights, xenon single-arm street lights and LED single-arm street lights. Solar energy is also known as single arm solar street light.
As a derivative of the single-arm light, the double-arm light has two arms. The two arms of the double-arm light have a certain symmetry, which is richer than that of the single-arm light, but it is not suitable for installation on a single road condition or narrow road. Generally, it is installed on multi-lane green belts, considering both sides of the road, the parts with special lighting requirements will also use this light.
Due to different light sources, double-arm lamps can be divided into ordinary sodium lamps, energy-saving lamps, xenon lamps and LED lamps. Solar installations are also known as solar double arm lights.
While the two lights aren't superficially different, they function quite differently. When purchasing, street lamp manufacturers recommend choosing different types of street lamps according to road needs to achieve the ideal lighting effect.