OSRAM supplies innovative LED street lighting for Torraca

Phaenomena uses energy-efficient LEDs from OSRAM Opto Semiconductors in street lights

Tradition meets modernism: Energy-efficient LEDs from OSRAM Opto Semiconductors are set to show the medieval streets of Torraca, in the Italian province of Salerno, in their true light. Since August, Phaenomena has installed new street lighting in the town, which combines the traditional design of the original luminaires with a high level of brightness, contrast and cost savings – and even reduces light pollution. This is achieved through the highly efficient OSLON Square LEDs from OSRAM Opto Semiconductors, used as the light sources, and the dimmable control system, OSRAM Optotronic OT 3DIM.

Each luminaire in Torraca contains 24 OSLON Square LEDs with a color rendering index of 70 and a color temperature of 4,000 Kelvin, as well as a dimmable Optotronic control system. Special programming automatically dims the brightness of the lights from 100 to 70 percent after midnight. Combined with the high efficiency of the LEDs used, this feature will bring about considerable cost savings. The control system will reduce light pollution as required by regional directives, where lighting profiles with varying degrees of brightness for the different seasons are implemented by means of an integrated clock.

“The decision to use OSLON Square LEDs from OSRAM Opto Semiconductors in the luminaires was based on four key indicators: the high quality and reliability of the LEDs, the excellent support team, and the programmability of the electronic control systems,” explains Angelo Arato, CEO of Phaenomena.

Thanks to a new conversion technology that permits the production of much thinner converter layers, OSLON Square LEDs are particularly resistant to high ambient temperatures. Even with temperatures of up to 135° C in the LED, they still boast a lifetime of well over 50,000 hours. Phaenomena also installed a thermal system in the lighting solution to limit the operating temperature of the integrated LED to 85° C throughout the year.

The improved LED thermal behavior increases the luminous efficacy in the application. This greatly optimizes the value of lighting solutions like the one in Torraca,” says Gabriele Giaffreda, project supervisor at OSRAM Opto Semiconductors.

Another requirement for the new LED lighting solution was to maintain the traditional design of the luminaires conserving the medival look of the town. Phaenomena’s answer was to use the original metal housings of the street lights, changing only their inner workings. As many as 40 new street lights are installed along the main street with another 660 to follow at other locations throughout the town. Torraca was classified as a model town for LED use after becoming the first town in Europe to replace its old street lighting with LEDs in 2007. With its new, extremely efficient OSRAM OSLON Square LEDs, the town now stands to benefit even more from the increased brightness and cost savings.

Information on Phaenomena is available here.

For additional information on the OSRAM OSLON Square LEDs, please access the product catalog.

Before and After LEDs

A successful collaboration: The before and after pictures highlight the great difference in the brightness of the light shining from the traditional luminaires. Source: OSRAM