Nowadays, led street light is widely used

Led street lights include heat exchangers to regulate temperature. These devices moderate the heat that an electrical current produces as it powers the Led. Heat exchangers use the passage of air over a series of fins to keep the lighting element cool and to make sure that led is able to produce even light without darker areas or "hot spots" that might otherwise occur.Reading the above article, you maybe know clearly about the street lights.

Nowadays, led light bulbs is widely used, but do you know how led street light consist of and what are the components of it?

Led street light bulbs come in a wide range of styles and sizes. Most conventional street lights use halogen bulbs, which are similar in function and appearance to household incandescent bulbs. These bulbs consist of a vacuum tube with a filament inside and an inert gas (such as halogen) that causes the burned portion of the filament to recollect on the filament wire, extending the life of the bulb. Metal halide bulbs employ similar technology but use even less energy and produce more light.

One component common to all types of street lights is the post, which rises from a base at the ground and supports the lighting element above. Street light posts contain the electrical wiring that connects the lights directly to the electric grid. Some posts also include a service door for gaining access to a street light's control unit and making repairs or adjustments from ground level.

Led and conventional street lights feature a curved lens that is usually made of heavy-duty glass or, more commonly, plastic. Street ordinary lights lenses function to magnify the effect of the light inside. They also direct the light downward toward the street for maximum efficiency. Finally, street light lenses protect the delicate lighting elements inside. Fogged, scratched or broken lenses are much easier and cost-effective to replace than entire lighting elements.