Energy-efficient LED solution transforms Bangkok’s landmark roundabout

Energy-efficient LED solution transforms Bangkok's landmark roundabout

Victoria Monument has graced Bangkok’s skyline since its establishment in 1941. The iconic monument stands within a busy traffic roundabout and serves an estimated 150,000 motorists a day.

 

Over the years, the lighting at the roundabout became problematic. The existing High-Pressure Sodium (HPS) lights were insufficient in brightness and prone to frequent breakdowns due to being over 30 years old. As a result, light pollution has affected the surrounding buildings, dimming the nocturnal presence of the monument.

 

A project was launched to upgrade the roundabout’s lighting to energy-efficient LED lighting. The new lighting had to provide an average brightness of at least 34 lux and uniformity of at least 0.33, creating a well-lit and safe environment for the estimated 150,000 motorists. A further consideration was minimising the light spillage onto the monument and preventing light pollution above 180 degrees, which preserves the monument’s aesthetics whilst reducing energy consumption, and operational and maintenance costs.

 

CU Phosco Lighting’s local agent in Bangkok, Tasjinda, was selected to implement the project. The FL810 floodlight, a solution that met all the objectives, was chosen.

 

The FL810 floodlight is a high-output, versatile LED floodlight designed for mounting on existing masts. It offers luminaire efficacy, reaching up to 141 lumens per watt due to its high transmission flat glass optics. The floodlight also has a high Colour Rendering Index (CRI), which ensures clear and vibrant illumination.

 

To reduce glare and light pollution, the FL810 floodlights come equipped with precision-controlled cut-offs and cowls, significantly mitigating light pollution compared to the previous system.

 

The transformation of the roundabout’s lighting has yielded significant results and benefits. The new lighting has improved safety for motorists, pedestrians, and commuters, markedly enhancing nighttime visibility. 

 

The FL810 floodlights are also robust and reliable, designed to withstand challenging conditions. They boast IP66 protection and vandal-resistant toughened glass. The installation has achieved impressive energy savings of 51%, saving the city money in the long run.

 

The project has achieved its objectives by transitioning to energy-efficient LED lighting, enhancing brightness and uniformity, reducing light spills, and delivering substantial energy savings. 

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