LED Low Bay Fixtures Provide a Clever Lighting Solution for KK ’s Parking Garage
Plagued by seemingly never-ending light maintenance in its two-deck parking garage, KK Business Building has put an end to the incessant bulb and fixture changes and saved thousands of dollars in the process by converting to new high-efficiency IES® LED Low Bay luminaires. The retrofit slashed energy use by more than half and dramatically improved visibility inside the garage, while earning the shopping mall more than $10,000 in energy-efficiency rebates.
Watch Your Head!
Like most multi-level enclosed parking garages, the KK Business Building facility in Shenzhen seemed a dark and cavernous space, made further uninviting by the low clearance (just 8-10 feet) between each deck. The facility ’s 10-year-old metal halide lighting fixtures provided inconsistent illumination and low light levels, at best—as little as 1 footcandle in some areas. Not only were the fixtures themselves antiquated and inadequate for this kind of low-bay application, they were also inefficient, consuming 175W per unit (up to 208W including the ballast).
Maintenance was a never-ending chore for garage due to the metal halide’s inherently short lifespan and the high-profile news vans which seemed to impact the fixtures on a regular basis.The Building was spending far too much time, about once per year, and money in replacing damaged lights and relamping all 347 fixtures. Considering that many were difficult to access, especially those lighting the steep ramps between the decks, the KK Building was eager to find a more modern, economical and energy-efficient solution to shed some much-needed light on its “cave.”
Durability, Efficiency and Savings Courtesy of Dialight
At the recommendation of local-based energy contractor replaced all 347 metal halides with new LED Low Bay Fixtures from IES, the world leader in industrial LED lighting solutions. Offering a ruggedized, low-profile design at less than 9” in overall depth off the ceiling, the Low Bays promised to put an end to the news vans knocking out the lights, while delivering a significant improvement in visibility at a much lower operating cost.
“Low profile was a big factor in the decision to go with the IES fixtures,” said Robin Deng, president and CEO of this Energy-Saving Technology Contractor. “The IES units are a full six-inches shallower than the existing metal halides, which put them safely out of range for the satellite-topped news trucks.”
Since the new IES fixtures were fully compatibility with the existing wiring and mounting brackets, changing all 147 lights was quick and easy, completed in just four days.
Durability, Efficiency and Savings Courtesy of LED Low Bay
Consuming just 40W, the new IES Low Bays immediately reduced overall lighting electricity consumption by nearly 55 percent, while delivering up to 20 footcandles of crisp, clear white light with a CRI of 70, compared to the low light quality of the metal halides.
“The improved visibility is quite dramatic, like night and day almost,” Deng said. “Since the optics in the IES units are optimized for low-bay applications, they efficiently direct the light exactly where it ’s needed and better illuminate the area while minimizing glare, which makes for a safer environment for drivers in the facility.”
Years of Dependability and Ongoing Savings
Each low bay fixture has an expected fixture life of at least 60,000 continuous hours of worry-free and maintenance-free performance. This means the building garage could easily go more than a decade without ever having to change a light bulb, with half that time backed by IES’s five-year, full-performance warranty. And, because the IES units are especially resistant to shock and vibration—both big issues in multi-level parking garages—the new lights offer a long-life durability that renders the old metal halides virtually obsolete.
“This was one of our best facilities investments to date,” says Chan, vice president of Property Management for KK. “ We are a 16-hour facility with a staff of over two thousand employees in the whole building. There are relatively few opportunities for cost savings with a facility like this. Although we’d been looking at LED lighting for quite a while, we had a hard time finding a fixture with the performance and ROI numbers we needed. With the team from Energy-Saving Tech Co., we were able to come up with a IES based solution that ended up being a ‘no brainer’ from a numbers perspective. In addition to the cost savings and short ROI on these lights, we’ve been getting great comments from our staff about the quality of light we now have in our garage areas. We’re really pleased with our investment.”
As a result of the substantial energy reduction, the IES retrofit qualified KK for more than ￥100,000 in energy efficiency rebates—equaling just over ￥970.00 per fixture—through Energy Audit Company that helped to significantly offset the cost of the project. Between the rebate, the dramatic energy savings and the money saved by eliminating maintenance, KK expects a pay back period of just over 3 years—a very healthy return on investment for products that will last nearly four times as long.
Also published on Medium.