The underground coal mine is one of the most difficult lighting applications

DRS and Associates boasts an experienced team with backgrounds in public relations, publishing, social media marketing, brand stewardship and graphic design in traditional and new media practices. Featured in the current roster of DRS’ international clients: THG Paris?, Stone Forest?, bulthaup, LAUFEN, Zephyr?, Corbett Lighting, Hudson Valley Lighting? and Troy Lighting, among others. “We are thrilled to embark into a relationship with pioneering brand Sonneman – A Way of Light, working in tandem with design legend Robert Sonneman,” said David Schlocker, president, DRS and Associates. “Partnering with both a visionary brand and designer is truly a privilege. We are aligned in building a unified awareness of how instrumental Sonneman continues to be as a source of American modernist design and thought."

Osram’s versatile Oslon SSL series are applied in Xishan Duerping coal mine lighting in Shanxi Province, the so-called “home of coal” in China.  The 19,500 LEDs are installed in 975 lamps, replacing the traditional fluorescent lamps, to light up the 63.1 square km high wattage coal mine.  They enable energy savings of 61% (from 427050 kilo Watt hour down to 170820 kilo Watt hour annually), as well as reduce maintenance requirements and accident rate significantly, resulting in an annual saving of more than RMB220,000 (around 28,000 EURO).

The underground coal mine is one of the most difficult lighting applications. It is a low reflectivity, low contrast, high temperature, and high corrosive environment. With the use of LEDs in place of traditional incandescent lamps,  coal mine lighting application has become less challenging.

The 20W LED lamps come in two designs: - the round shape ones are for general lighting in the underground coal mine while the square ones are for long distance lighting inside the tunnels. Because of the low reflectivity in coal mines, the output of light sources needs to be much higher.  With luminous flux of 104 lm warm white to 130 lm cool white, Oslon SSL is the ideal choice for this application.