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Current issue

ELEKTRO 6/2017 was released on June 7th 2017. Its digital version will be available on June 26th 2017.

Topic: Rotating el. machines; Drives and power electronics; Frequency converters; Electromobility

Main Article
Use of programmable logic devices in electric drives
Permanent-magnet DC electric machines

SVĚTLO (Light) 3/2017 was released on June 9th 2017. Its digital version will be available on July 10th 2017.

Lightning sources
Terminology of LED lighting sources 

Daylight
The day lighting of big living rooms
Light technology assessment of linear structure

Cree and Musco Team Up to Transform Lighting of San Francisco-Oakland Bay Bridge

03.07.2014 | |

The California Department of Transportation (Caltrans) recently completed its LED lighting overhaul to the East Span of the iconic San Francisco – Oakland Bay Bridge. After three years of testing and designing custom fixtures, Musco Lighting provided an energy-efficient LED lighting solution featuring Cree® (Nasdaq: CREE) XLamp® XM-L LEDs to illuminate the picturesque suspension tower and bridge deck. In total, the bridge now employs nearly 1,600 custom-built LED light fixtures, leveraging more than 51,500 high-performance LEDs, lighting the entire East Span at an estimated energy savings of 50 percent and lifetime of 15 years — more than seven times longer than previously deployed lighting technologies

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