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Current issue

ELEKTRO 12/2017 was released on December 6th 2017. Its digital version will be available on January 5th 2018.

Topic: Measurement, measuring devices and engineering; Testing and diagnostics

Main Article
Measurements on rotating machines using SFRA method
Application possibilities of ultra-capacitors or LiFePO4 batteries in trolley network of the Brno Public Transit Company

SVĚTLO (Light) 6/2017 was released on December 11th 2017. Its digital version will be available on january 11th 2018.

Lighting installations
The lighting of university building Centrale Supélec in Saclay in France
The light for our future

Daylight
Application and judgment light guides Solatube®

EVERLIGHT’s Natural Light Technology campaign addresses market requirements for higher quality of Li

18.09.2014 | |

EVERLIGHT ELECTRONICS CO., LTD. , a leading player in the global LED and optoelectronics industry, supplements its LED Lighting product portfolio, currently featuring a market-standard CRI of > 80 Ra, with higher color quality versions. The new Natural Light LED variants will provide a CRI >95 Ra, averaging 98 Ra. EVERLIGHT is pursuing this goal a step at a time. The first LED series to implement the Natural Light Technology is EVERLIGHT’s 3 - 50W Ceramic COBs (JU Series) and Metal PCB COBs (XUAN Series). All other LEDs will offer Natural Light versions in Q4 of 2014. 

Color rendering, a quality characteristic of light, is the effect of an illuminant on the color appearance of an object by conscious or subconscious comparison with their color appearance under a reference illuminant. One major objective of LED lighting manufacturers is to achieve a light quality that can replace or emulate the ultimate reference of the sun. In other words: a CRI of 100Ra. To reach this goal would bring sunlight indoors, sustain sunlight during the night, replace traditional incandescent and halogen lamps which usually feature high color quality, and change the way we perceive and appreciate our surroundings.

Everlight Electronics