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The Industry's Thinnest LED Base Lighting Device

02.27.2009

ROHM Co., Ltd. has announced the development of the R-CK001, the industry's thinnest ceiling-mounted seamless LED base lighting unit. Significantly improved energy savings combined with a seamless, socket-less configuration, result in the ideal base lighting solution (lighting that illuminates an entire space).

The R-CK001 incorporates multiple mid-power ROHM LEDs and utilizes a unique optical design enabling natural bright light with uniform diffusion and no unevenness. The power source circuit was minimized resulting in an overall height of only 38mm – the thinnest on the market. Advanced proprietary semiconductor technology ensures a conversion efficiency of 85% and stable current flow, impervious to adverse effects from commercial power source voltage variations or local temperature fluctuations. Only 24W is required for operation (including the power supply circuit), representing a 52% decrease in power consumption over conventional 40W fluorescent lights while providing 1.3 times greater illumination (measured 1m directly below). Lifetime is also greater, by up to 3 times (40,000 hours), making them much more environmentally friendly.

Sample units were installed in a 24-hour convenience store (Save On, Honjō Hirukawa, Saitama Prefecture) in order to promote the advantages and showcase the viability of LED lighting fixtures for everyday commercial use. The R-CK001 was also noted for its quality and design by the Japanese Ministry of the Environment as part of its ‘Energy Saving Lighting Design Model Project’ (see below for more information).

Availability :     Now (Samples), May 2009 (OEM Quantities)
Pricing : TBD


•Features of the R-CK001 LED Base Lighting Unit

  1. Seamless design ensures even edge-to-edge illumination
  2. 38mm thin
  3. Multiple mid-power LEDs utilized for uniform light diffusion and significantly reduced glare
  4. Provides a luminance of 380lx (directly below) with a power consumption of only 24W
  5. Proprietary high efficiency (85%) power source circuit built in. Supports direct connection to commercial power sources.
  6. Long life: 40,000 hours – reduces replacement costs and waste products

•Primary Specifications

Part No. Light Color Rated Power Consumption External Dimensions Luminance
(1m Directly Below)
R-CK001 Daylight /
White Daylight /
Incandescent Bulb		 24W 1227mm × 120mm
height 38mm		 380lx

•R-CK001 Low Profile Seamless LED Base Lighting Fixture

R-CK001 R-CK001

Regarding the Ministry of the Environment’s ‘Energy Saving Lighting Design Model Project’

As a countermeasure to global warming in October 2008 the Ministry of the Environment began urging businesses, such as commercial facilities and stores, to take the initiative in introducing energy-saving lighting. Shortly afterward the Model Business Inspection Committee was established and publicized the top 12 companies in the nation at a symposium on energy-saving lighting held on January 27, 2009.
The selected businesses, with the cooperation of lighting designers, are tasked with producing new lighting designs (based on the advice of the Inspection Committee) that create attractive spaces while achieving exceptional energy savings through novel configurations and designs.
Each business is then expected to utilize these new lighting solutions in its own facilities, demonstrate their effectiveness (i.e. CO2 reduction), and promote their widespread use. (Excerpt taken from the Ministry of the Environment website).

The R-CK001 was developed as a joint venture between ROHM, Sav On (in Honjō Hirukawa, Saitama Prefecture), and Kenos Spatial Design, Inc., based on designs from Kenos. The goal was to create an energy-saving LED lighting device that was aesthetically pleasing, thin and durable enough for long-term, continuous use in commercial environments.

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