LED Construction Lights
On construction sites, cranes use numerous lights for safety and illumination. Just how much lighting does a crane require during operation?
A heavy-duty rubber tyred gantry (RTG) crane, which is commonly found in shipyards and ports that hold or stack containers, uses around 14 different lights on a regular basis. These units range from obstruction lights for pedestrian safety to floodlights located on the stacking carrier to illuminate containers during lifting maneuvers.
Operating Costs and Savings
Previously, RTG cranes utilized metal halide lamps for illumination. Although bright, the lights were inefficient and costly for operators. Now construction businesses are transitioning to LEDs, in order to address pitfalls associated with traditional metal halide lamps.
Switching to LEDs can save RTG crane operators up to $5,000 per year (per crane), according to a Milwaukee-based company that specializes in the port crane market. When spread over a fleet of RTG cranes, the savings are enormous. For instance, a fleet of 100 RTG cranes outfitted with LEDs provide $500,000 in savings per year.
Expected Lifespans of LEDs
One of the main reasons LEDs perform exceptionally well on construction sites is due to their extended lifespans. In controlled, ideal environments, LED chips can last up to 100,000+ hours. Most LED lights offer an average lifespan of 50,000+ hours, as the units are rarely installed in locations that are perfectly suitable for the lights. In most cases, the fixtures are exposed to vibrations, water and extreme temperatures. RTG crane operators who use LED lighting systems around 12 hours per day can expect them to last 10+ years.
After its intended lifespan, LEDs will continue to provide illumination. This phase of the luminary’s lifespan typically comes with decreased output. However, unlike metal halide lamps, LED construction lights for cranes may continue to operate more reliably, displaying less issues related to color temperature, flickering and discoloring.