Research Project Summary Information
Solar-powered Exterior Light Fixtures(ST4868-1)
SELUX is a New York State lighting fixture manufacturer that is considered a leader in the design and manufacture of high-quality architectural exterior lighting for public spaces. SELUX was founded in 1983 and had a marketing partnership with Staff Lighting until 1994. Today, SELUX is owned by Semperlux AG as a majority shareholder. Ownership is in Berlin, Germany, but SELUX is a U.S. corporation, with more than 95% of the tooling and material supplied domestically. SELUX developed a T5 luminaire in another NYSERDA project (Agreement No. 4325).
Working with SOLAR Outdoor Lighting and Semperlux AG, SELUX conducted market research to formulate specific customer criteria for architectural solar light fixtures. The research showed that New York is a viable market for solar applications, and a fully-integrated solar system to light public and private spaces can increase the State's use of renewable energy. Using the criteria established in the market research, Selux designed, prototyped, and demonstrated two solar-powered lighting fixtures for public space lighting. A comprehensive marketing effort was also undertaken.
The project helped maintain engineering, sales, and manufacturing jobs at Selux’s Highland, NY facility and increased SELUX's exterior fixture sales. The integrated systems require minimal maintenance-requiring only one lamp replacement once every two years, and battery replacement every 5-7 years.
Five fixture and battery compartment prototypes were fabricated and sample prototypes installed at the Selux offices at Highland, NY, and in a public park space in Boulder, CO, where both have performed successfully since 2001. The fixtures were commercialized in 2002, and a demonstration project entered into with the New York State Department of Transportation (NYSDOT) and Rensselaer Polytechnic Institute's Lighting Research Center (LRC) to install and evaluate 42 fixtures in Greenwich, NY (NYSERDA Agreement 7696). This demonstration experienced a number of performance-related problems during cool winter conditions, including premature lamp, ballast, and battery failures. The LRC tested the system components under laboratory-simulated cold weather conditions to help determine the cause of the performance problems. The LRC was able to determine that the controller was not sufficiently charging the battery to ignite and drive the compact fluorescent lamp CFL’s under cool operating temperatures, which in turn was causing the lamps to prematurely fail. New controllers, batteries, and lower wattage CFLs were installed and the project team partners are fairly confident that the solar-powered fixtures will not experience further failures in the future. The product was commercialized by Selux and is marketed to US and international markets.
5 Lumen Ln # 1060
Highland, NY 12528
NYSERDA Contact Information
R&D - Buildings Research