THE LIGHTING SCHEME
Completed in March 2018, the landscape lighting of Yeonggwang bridge is concentrated on the central part of the cable-stayed bridge, mainly illuminating its two majestic pylons and their cables. In order to enhance the whole length of towers and cables, long-throw lighting fixtures were required to reach a satisfying luminance level up to the top of the high structure. Therefore, 28 units of Powershine MK2 D RGBW with spot optics were fixed in couples on sturdy metal supports located at the base of the towers in order to light them up till the top with an even light output. 20 units of the single bank version, Powershine MK2 S RGBW, also with spot optics, were installed along the cable fixing points on the borders of the bridge to enlighten the metal ropes in their full length. To complete the lighting scheme, 8 units of Powershine MK2 S in RGBW colour configuration with medium optics and 8 units with wide optics were installed at the lower base of the two pylons to light up their basement at 360°.
All the fixtures have been equipped with dedicated anti-glare shields in order to grant the maximum drivers’ comfort and safety. Moreover, the whole DMX system is managed with the help of a number of two-channel DMX amplifiers, which split and boost the incoming DMX signal into 2 separate output channels in order to better reach all the fixtures installed on the bridge.
The chosen colour configuration uses white, yellow, and green in spring, "a fairy tale of natural sunshine” alternated with "a cool wave in blue and green” in summer, a "happiness of magenta and purple" in winter, and "whispers of love during the holiday season", just to use the words of the Korean newspapers describing the features of the landscape lighting on the occasion of its inauguration ceremony. Best visible from the main entrance of Baekje Buddhism birthplace site, the LED lighting system will be automatically turned on every day 5 minutes after sunset. The beautiful dynamic colour changing effect, which enliven the whole structure at night, delivers a new attractiveness to the bridge, already become a landmark in this region, linking land and tradition.
POWERSHINE MK2 D uses a total of 192 powerful RGBW LEDs and is available with a vast choice of optics for the maximum lighting design flexibility. Owing to its double cluster configuration, which offers full independent control of each LED bank, this wall washer allows absolute freedom to create matching or divergent effects on formerly prohibitive large-scale facades and remote spots. The combination of RGBW LEDs provides an unprecedented astonishing white light output quality, as well as a wider variety of intermediate colour hues for an even broader range of application purposes. POWERSHINE MK2 D Polar Edition features an integrated de-icing system with electrically heated glass, which assures a comfortable functioning even in the utmost severe cold weather conditions.