Monday, October 24, 2011

Dialight DuroSite® LED Low Bay Fixture Certified by DesignLights™ Consortium

Maintenance-Free, Low-Glare Fixture Added to DLC Qualified Products List under Parking Garage Luminaire Category, Now Pre-Qualified for Utility Rebates

Farmingdale, NJ (October 24th, 2011) – Dialight (LSE: DIA.L), an innovative global leader in LED lighting technology, today announced that its DuroSite® LED Low Bay fixture has is now listed on the Designlights™ Consortium’s Solid State Lighting Fixtures Qualified Products List in the Parking Garage Luminaire category. Posting on the DLC list identifies the fixture as eligible for valuable utility rebate programs with participating DLC utility partners and validates the Low Bay’s exceptional energy efficiency and lighting efficacy for use in parking garage applications.

Recently launched, the DuroSite Low Bay features Dialight’s exclusive optics design for precision light placement and reduced glare for superb visibility in low-clearance applications. This high-durability fixture features a low-profile chassis specifically designed for mounting at lower than 25-foot height. Delivering up to 75 lumens per watt, the Dialight Low Bay is among the most energy efficient lighting solution available for low-clearance applications, ensuring at least 50 percent energy savings over typical HID lighting sources. With up to 10 years of reliable performance and maintenance-free operation, upgrading to the Dialight LED Low Bay fixture can help municipal and private parking operators save money on both electricity and maintenance.

In addition to its high-efficiency and low-maintenance performance, the Dialight Low Bay features instant on/off response for improved safety and bottom-line savings by eliminating the need to keep the lights burning continuously to avoid the warm-up period common with conventional fixtures. Dimmable and occupancy sensor versions of the Low Bay are also available to further improve energy efficiency.

The DLC’s Qualified Products List covers SSL luminaires for commercial spaces. It guides program administrators in determining which lighting products meet desired energy efficiency guidelines in categories not addressed by the U.S. Department of Energy’s Energy Star program. Fixtures listed on the DLC’s qualified product list may be eligible for state and utility energy efficiency rebate programs that enhance the overall cost savings and deliver a much quicker pay-back—less than two years, in most cases—for upgrading to LED solutions.

For more information about the new Dialight DuroSite LED Low-Bay fixture, including IES files and technical datasheets, visit

About Designlights Consortium

The Northeast Energy Efficiency Partnerships (NEEP) Designlights™ Consortium (DLC) works to ensure that only high-quality, high-performance, tested and verified LED products will be eligible for rebates from sponsor programs. Sponsored by utilities and energy-efficiency programs throughout the United States, The DLC’s Qualified Products List serves as a resource for program administrators to help them decide which solid state lighting products to include in energy efficiency promotions by reviewing and certifying products submitted by manufacturers against a set of guidelines based on the U.S. Department of Energy’s ENERGY STAR program. For more information, visit

Tuesday, October 11, 2011

Case Study: Major Brewery Counts on LED Technology to Contribute to its Environmental Protection Initiative

Installation Snapshot
  • Truck driveway (120m long, 12m wide)
  • Mounting height approx. 8 m
  • Number of LED fittings – 16
  • Replaced – 14 400W HID with 150W LED
  • Switch-on by demand (controlled by light sensor)
  • Energy saving: 73% (despite 2 extra fittings)
  • Average W/m² reduced from 4.3 to 1.2 
Environmental protection has always been of prominent importance to the Munich-based, worldwide reknowned Paulaner Brewery Group. Its well-proven environmental management system documents according to DIN ISO 14001 how the eco-balance is being permanently improved and makes the measures visible. Every year objectives and projects to reduce energy and water consumption are defined. Although lighting only contributes a smaller portion to the overall energy consumption of the Paulaner Group, it strives for reducing CO2 emission in that area and increasingly relies on the use of energy efficient LED lighting fixtures.
The current project
The 8 m high and 120 m long covered truck driveway had been equipped with 14 downlight fixtures for 400W HID lamps with an on-time of approximately 2000 hours per year. The department manager for electrical equipment, Harald Zeiller, describes the issue: “We could not switch the fixtures on and off on demand since the metal halide lamps need to cool down for approximately ten minutes before you can turn them on again. And then it takes almost the same amount of time until they have regained their full intensity. Furthermore, the maintenance costs haven’t been insignificant.” They looked for a powerful, energy-saving and low maintenance lighting system that in addition increases the quality of light in the driveway and thereby the safety for pedestrians.

The Dialight LED High Bay as problem solver
Mr. Zeiller opted for the LED High Bay fixtures from Dialight. “Besides the mere technical data and the saving potential I was especially impressed by the five year manufacturer warranty,” he says. “Also important to me were the easy mounting and the special design of the cooling fins which makes it very unlikely that the inevitable deposit of diesel exhaust particulate will significantly compromise the cooling function.”

Impressive energy savings
The LED High Bay fixtures have been combined with a newly installed EIB bus system and are switched on and off in groups controlled by a light sensor. This results in further 30% energy saving, in addition to the already greatly reduced system power consumption of 2.4 kW compared to the former 6.2 kW, which has been realised solely by switching to LED technology. Thus a further contribution to achieving the environmental goals for 2011 has been made.

Increased safety by improved lighting
“The new light is of a completely different quality, it provides better contrast and is more brilliant”, Mr. Zeiller comments. And to increase the safety for the pedestrians walking through the driveway he has even invested in two more fixtures.

Altogether the team at Paulaner is very satisfied with the new LED lighting and also with the cooperation with Dialight. Harald Zeiller: ”From sampling to shipping everything went quickly and hassle-free, and if the quality furthermore holds what Dialight promises, there is by all means an opportunity for further installations.”

About Paulaner
The Paulaner Brewery Group includes the beer trademarks Paulaner, Hacker-Pschorr, AuerBräu, Thurn & Taxis und Hopf and has about 800 employees. It is the leading exporter of Bavarian beer specialities to the most important foreign markets (Italy, USA, France, and Spain). In 2010 the Paulaner Brewery Group distributed almost 3 million hectolitres of beer.

Monday, October 3, 2011

Case Study: How LED Lighting Delivered Multiple Benefits for Barcelona Metal Processing Plant

Spanish manufacturing company Martisa is based in Barcelona where it produces metal parts for the automotive industry.

The lighting challenge

With the metal processing machinery pumping so much energy, the 32x400W high pressure sodium (HPS) lights in the 1288 sqm Martisa facility were subject to frequent dimming and flickering, so the management were looking for a more robust lighting solution. The performance instability of the HPS was also generating irregular colour rendition areas varying between 118 and 270 lux at floor level.

Installation snapshot
• 1,288 square metres
• Number of fixtures – 32
• Replaced – 400W HPS
• Illuminance level – 200 lux
• Mounting height – 9 metres
• Energy reduction – 69%
• Installed load cut from 9.9 to 3.7W/sq metre

Further problems arose when the lights took ten minutes to re-strike following power outages. Maintenance was also an issue, as the HPS lights were mounted at a height of 9 metres, ran ten hours a day, five days a week and had to be replaced every 10,000 hours, each at a unit replacement cost of €50 plus the use of a mobile elevation platform that cost €100 per day.

The solution

Martisa’s energy consultant (Area Energetica, a lighting consulting partner of INELEC distributor) recommended a lighting solution by specialist LED lighting manufacturer Dialight that could meet all of these challenges as well as delivering substantial energy savings. In order to minimise project cost they chose to replace the 400W HPS lights on a one-for-one basis with Dialight’s highly robust 150W DuroSite® LED High Bays.

The result

Martisa is now enjoying the immediate benefits of 69% reduction in lighting energy use and reduced carbon emissions from solid-state LED High Bays that suffer no flickering or dimming effect from the amount of energy being pumped by the machinery. The lux level is now steady at 200 at floor level, giving improved and consistent colour rendition, while the LEDs’ instant-on ability means that there is no re-strike delay following power outages. Carrying a 5-year continuous performance warranty and with an expected lifetime of 60,000 hours, the LED lighting has also greatly reduced the maintenance burden and cost.

Mr. Santi Martínez, the manager of Martisa, commented: “Replacing the HPS with Dialight’s LED High Bays has eliminated the annoying flickering issue caused by the energy consumption of the machines and we now have the added benefit of instant on/off switching that allows more efficient lighting management by reducing the re-strike time. Our staff now works with a better sense of comfort due to the removal of the lighting fluctuation and we’re getting overall homogeneous lighting with improved colour rendition across the entire warehouse. The reduction of energy consumption and maintenance fees represent a huge and direct economic saving for the company that also represents significant value.”