With the continuous development and maturity of LED lighting technology, the Keelung Municipal Government has been carrying out the replacement and upgrading of LED street lighting since last year (110), gradually replacing the early high-brightness white LED street lights with warm colors. The yellow LED street lights allow the public to enjoy a higher-level nighttime environment.

The Municipal Public Works Office said that since last year, it has installed more than 1,000 light bulbs for important roads, because the wavelength of yellow light is longer than that of white light, and when it rains, the light passes through the water droplets and has a smaller angle of refraction, which has the effect of penetrating in rainy days. The advantage of better power can make passers-by see more clearly on rainy nights, especially in the rainy environment of Keelung; and if the weather is good at night, it can also highlight the color of Keelung's landscape and landforms, such as the The charm of Hama Color House at night is also provided by the background color of the yellow street lights. In addition, the Public Works Office has also continued to use new technologies to protect the firefly ecological environment. In the past, in order to keep the fireflies from being affected by the street lights, the Public Works Office staff had to climb up one by one, and then "wrapped up" the traditional street lights with red cellophane. This year At first, the Public Works Office used the LED street light source controller to directly perform intelligent light reduction operations, and the public did not need to go to other counties and cities to enjoy the fireflies.