What are the obvious advantages of LED street lights compared with high-pressure sodium lights?

Update:25-10-2021
Summary:

LED street lights have three advantages: First, the lig […]

LED street lights have three advantages:
First, the light emitted by the well-designed LED street lamp is clear, controllable and beautiful. The precisely designed optical elements in the LED luminaire ensure that the light reaches where it belongs, which means less light is wasted.

Second, LED lamps have lower maintenance costs and lower energy consumption. Since most road lights are owned and operated by utility companies, the use of LEDs can reduce energy consumption by about 40%. At the same time, the more important saving is maintenance. Because the lumen output of high-pressure sodium lamps will decrease, high-pressure sodium lamps must be replaced at least every five years. The material and labor for a single bulb replacement may cost 80 to 200 US dollars. Since the lifespan of LED lamps is three to four times longer than HID, the cost savings of a single maintenance will be very large.

Third, decorative LED street lighting is growing. With the improvement of technology and the reduction of manufacturing cost, lighting manufacturers can provide a wider range of decorative lighting options, which can imitate the lighting design of old-fashioned gas lamps, etc., which has very aesthetic advantages.

A few years ago, LED lamps accounted for only a small part of the road lighting market. Compared with HID lamps, the high cost of LEDs makes it difficult for most towns to switch. But today, with the advancement of LED lighting technology and the decline in prices, the pace of LED adoption is accelerating. In the future, road lighting will be LED.
www.china-sanity.com
bh1a