Heat sinks tend to have as many grooves as possible to facilitate the flow of hot air away from the LEDs.

The area of heat exchange directly affects the lifespan of the LED street light.

Once its brightness decreases by 30 percent, white (clear) an LED street light is considered to be at the end of its life.

The primary appeal of LED street lighting is energy efficiency compared to conventional street lighting fixture technologies such as high pressure sodium (HPS) and metal halide (MH).

[2] It is estimated that installation of energy efficient street lighting in the 10 largest metropolitan areas in the U.S. could reduce annual carbon dioxide emissions by 1.2 million metric tons, the equivalent of taking 212,000 vehicles off the road, and save at least $90 million annually in electricity costs.