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Home > Systems & Applications > Lamps & Luminaires > Sharp to Introduce 11 LED Lightings for Factories, Offices and Commercial Spaces
Products, Materials + Tools | Aug 08, 2008

Sharp to Introduce 11 LED Lightings for Factories, Offices and Commercial Spaces

Sharp Corporation has developed a series of new LED Lightings, including the "oblong" type that features a brightness equivalent to the fluorescent lamp fixtures*1 that are currently the main lighting in factories, offices and commercial spaces, and the "downlight" type with a brightness equivalent to a standard 150-watt incandescent light lamp. Sharp will introduce a total of 11 models into the Japanese market, including four oblong, one square, and six downlight models.

Today, looking at a breakdown of the amount of electric energy consumed by lighting in Japan, business and commercial applications typified by factories and offices consume roughly double the amount used for residential home use. Thus, there is increasing demand for replacement lighting options with a view toward switching to the next generation of lights that offer high environmental performance and which do not use hazardous substances such as mercury.

LED lights, which have low energy consumption compared to incandescent lamps and fluorescent tubes, and which feature outstanding environmental performance including a long product life and being mercury-free, are expected to serve as the next generation of lighting sources. Sharp has been involved in the development and commercialization of LED devices for more than 30 years. Sharp has been working to take full advantage of its know-how nurtured over that time to enhance the brightness of these devices and assemble them into modules in order to develop new lighting fixtures, undertake mass production, and bring new LED Lightings to the marketplace.

The "oblong" lightings being introduced at this time feature an elongated form factor and deliver brightness equivalent to conventional fluorescent light fixtures equipped with twin 40-W straight-tube fluorescent lamps thanks to an luminaire efficacy of 74 lumens/watt, the highest in the industry for LED lighting. They also offer a high level of energy efficiency, consuming about 25% less power than conventional fluorescent fixtures. Both the oblong model and its companion "square" type model, which is ideal for conference rooms and reception areas, provide even, uniform illumination thanks to diffused surface-emitting light technology. Further, the "downlight" line-up includes a model with light output equivalent to a conventional 150-watt incandescent bulb, the highest brightness in the industry for LED Lightings. These downlight models are suggested for use in commercial spaces such as shopping centers and department stores, as well as hotel lobbies and entrance foyers of business offices.

LED Lightings manufactured by Sharp will be adopted as the main lighting in all plants to be located within the "Manufacturing Complex for the 21st Century" now under construction in Sakai City, Osaka Prefecture, and scheduled to begin operations by March of 2010. This will represent the world's largest collection of LED Lightings installed in buildings on this scale. Using this achievement as a springboard, Sharp will be working in the future to further expand its LED lighting business into factories, offices and commercial spaces around the globe.

The "Downlight" Line-up:

The model DL-D007N Transparent Panel, Neutral White Downlight Lighting delivers a brightness of 1,400 lumens, the highest in the industry and equivalent in intensity to a 150-watt incandescent lamp. This unit can be used as main lights even in commercial facilities with high ceilings. The complete line-up combines two types of LED with different emission color temperatures (neutral white and warm white) and two types of cover panels (transparent and translucent white) in lightings having equivalent light intensities of either 150 or 100 watts. Neutral white LEDs can generate bright lighting for factory or office entrances, warm white LEDs can provide relaxed lighting for hotel lobbies and such, and translucent white cover panels are ideal for use in hospitals and other venues where overly bright lighting must be avoided. Users can select from a total of six models according to application and installation location.

In the future, Sharp will be working to expand its LED lighting business to spark a “lighting revolution in the factory, at the office, and in commercial facilities” based on high environmental performance and reliability.

Product name

LED Downlight Lighting

Model

DL-D007N

DL-D012N

DL-D010L

DL-D001N

DL-D011N

DL-D003L

Light source

150-watt Neutral white LEDs

150-watt Neutral white LEDs

150-watt Warm white LEDs

100-watt Neutral white LEDs

100-watt Neutral white LEDs

100-watt Warm white LEDs

Cover panel color

Transp.

Transl. white

Transp.

Transp.

Transl. white

Transp.

Suggested retail price

54,600 yen

54,600 yen

58,800 yen

44,100 yen

44,100 yen

48,300 yen

Date of introduction in Japan

September 1, 2008

Monthly production

Total of 3,000 units


Major Features:
1. The industry’s highest brightness of 1,400 lumens for an LED Downlight Lighting (DL-D007N).
2. Outstanding energy efficiency with power consumption about one-fifth that of incandescent lamps of equivalent brightness (DL-D007N/DL-D001N).
3. Long product life (40,000 hours), ideal for installation in locations where lamp replacement is difficult.

Features:
The industry's highest
brightness of 1,400 lumens for an LED Downlight Lighting (DL-D007N):
These lightings are built around high-output LED modules manufactured by Sharp that deliver the highest level of brightness in the industry. They feature an intensity of 1,400 lumens, equivalent to a 150-watt incandescent lamp, an industry first for an LED-based downlight. Ample brightness can be obtained even in commercial spaces with high ceilings, and in the entrances to factories, and offices.

Outstanding energy efficiency:
Model DL-D007N delivers brightness equivalent to a 150-watt incandescent lamp while consuming only about one-fifth the power. The model DL-D001N is as bright as a 100-watt incandescent lamp, yet offers the same superb energy efficiency—about one-fifth the power consumption of a standard incandescent lamp.
Long product life (40,000 hours), ideal for installation in locations where lamp replacement is difficult:
The use of a Sharp-manufactured high-output LED module combined with the development of a high-efficiency heat sink ensures a consistent 1,400 lumens of illumination and gives these units a design product life of 40,000 hours.

Three factors enable minimizing the temperature rise resulting from heat generated by the LED module: 1) a proprietary heat dissipation design that involved performing heat analysis simulations to optimize the fin spacing to promote heat transfer from heat sink surfaces, 2) the use of vertical baffles to increase natural convective airflow (thereby forming an open thermosiphon), and 3) improving the heat radiation performance by painting the fin surfaces black. In addition, a cover is positioned on the top of the heat sink to control the build-up of dust and maintain heat radiating performance over long periods of time.
These units can be expected to remain in operation for 10 years or longer, even when lit for 10 hours per day. They are ideal for installation in locations that require lights to remain illuminated for long periods of time, or in places where lamp fixture replacement is difficult such as high places or multi-story open spaces like stairwells, foyers and the like.

Six models to match a wide range of applications:
The neutral LED models are ideal for use in the entrance areas of factories and offices where high efficiency and brightness is important. The warm white LED models are ideal for lobbies in hotels where a sense of relaxation and restfulness is valued. And the translucent white panels that cut glare are well suited for hospitals and similar settings. In addition, the line-up includes 150- and 100-W equivalent intensities (light output equivalent to conventional incandescent lamps) to meet a diverse range and variety of needs.
 
Diameter of recessed luminaire is 125 mm; can replace existing downlights:
These luminaires can also be used to replace existing downlights with no additional ceiling work required. Also, the system to mount the units in the ceiling is based on three spring clips, allowing them to be installed in ceiling materials ranging from 5 to 25 mm in thickness. The power of the spring clips to pull the unit upward minimizes any gap between the surface of the ceiling material and the fixture.

Note: Sharp is also planning to market an adaptor plate (optional; sold separately) to enable these units to be installed in recessed openings up to 150-mm in diameter.

Environmental Features
Power consumption about one-fifth that of incandescent lamps of equivalent brightness (DL-D007N, DL-D001N).
Different from fluorescent lamps; use no toxic mercury.
Use lead-free solder.
Specific bromine-based flame retardants completely eliminated.
Complies with J-MOSS (the Japanese version of the European Union's RoHS Directive).

Designed for Safety:
Double-insulated construction
Flame retardant materials used
Specifications:
  Downlight (150 Watts) Downlight (100 Watts)
Model DL-D007N DL-D012N DL-D010L DL-D001N DL-D011N DL-D003L
Light source Neutral white LEDs Neutral white LEDs Warm white LEDs Neutral white LEDs Neutral white LEDs Warm white LEDs
Panel color Transp. Transl. white Transp. Transp. Transl. white Transp.
Emission color temp. 5200 K 5000 K 2800 K 5200 K 5000 K 2800 K
Power source voltage (volts) 100/200 V
Luminaire luminous flux (lumens) 1,400 1,330 1,080 1,000 900 680
Power consumption (watts) 27.0 W 27.5 W 27.5 W 20.0 W 20.0 W 20.0 W
Date of introduction in Japan September 1, 2008
Recessed hole diameter 125 mm
Weight Main unit: 1.1 kg; power supply unit: 0.8 kg

 "Oblong” and "Square" Type LED Lightings

Sharp Corporation has developed four “oblong” type LED Lightings for use in factories and offices that deliver brightness equivalent to the commercial fluorescent lamp devices typically used in such locations. In addition, Sharp has also developed a "square" type LED Lighting ideal for use in conference rooms and similar spaces. All models will be available in the Japanese market beginning September 1, 2008.

Fluorescent lamps, which are currently the dominant form of lighting in factories and offices, account for a significant percentage of the electricity consumed nationwide in Japan. In response, Sharp considered the need for lighting devices that would offer a higher level of environmental performance, and developed a family of LED Lightings featuring long product life, low power consumption, and containing no hazardous substances such as mercury, that are designed to be used not as partial illumination, but as primary sources of light.

The “oblong” models to be introduced at this time feature an elongated form factor and are ideal for use as lighting in factories and offices. On top of delivering brightness equivalent to conventional fluorescent lighting devices equipped with twin 40-watt straight-tube fluorescent lamps, they offer power consumption about 25% lower than fluorescent lights as well as high energy efficiency performance based on a luminaire efficacy of 74 lumens/W, the highest in the industry for LED Lightings*3. In addition, although LEDs have traditionally been regarded as having problems such as the light being uneven when used for surface-emitting illumination, Sharp employed its proprietary optical technology to achieve bright, uniform surface-emitting lighting that had been previous difficult to achieve with LEDs. In addition to standard types intended for general office and factory use, Sharp has also developed a “high-intensity spot-pattern” model for factory and warehouse spaces that have high ceilings. The line-up also includes a "square" type appropriate for use in conference rooms and reception areas. Users can select the appropriate model depending on the design of the space and their specific application.

In the future, Sharp will be working to expand its LED lighting business to spark a “lighting revolution at the factory, in the office, and in commercial facilities” based on high environmental performance and reliability.

Product name “Oblong” type LED Lighting “Square” type LED Lighting
Model DL-N001N DL-N002N DL-N006N DL-N003N DL-A001N
Type Transparent panel Translucent white panel Semi-trans-parent panel High-intensity spot-pattern  
Suggested retail price (tax included) 94,500 yen 199,500 yen
Date of introduction in Japan September 1, 2008
Monthly production Total of 10,000 units

Major Features:
1. Luminaire efficacy of 74 lumens/watt, the industry’s highest for an LED Lighting (model DL-N001N).
2. Light output equivalent to conventional fluorescent devices that use twin 40-watt-equivalent straight-tube fluorescent lamps with about 25% less power consumption (models DL-N1001N, DL-N002N and DL-N006N).
3. Bright, uniform, surface-emitting illumination (models DL-N002N, DL-N006N and DL-A001N).

Features:
Luminaire efficacy of 74 lumens/watt, the industry's highest for an LED Lightings (model DL-N001N):
Achieved the industry's highest luminaire efficacy for an LED Lighting of 74 lumens/watt by adopting LED with superior luminous efficiency.

Light output:
Light output is quivalent to conventional fluorescent fixtures that use twin 40-watt-equivalent straight-tube fluorescent lamps, and power consumption is reduced approximately 25% lower. Realizes light output equivalent to conventional fluorescent devices. These LED Lightings can be used as primary lighting in offices, factories and commercial facilities.

Power consumption:
Power consumption is reduced by approximately 25% compared to lighting fixtures that use twin fluorescent tube lamps.

Bright, uniform, surface-emitting illumination (models DL-N002N, DL-N006N and DL-A001N):
The use of LEDs for surface-emitting lighting has been regarded as problematic because LED are point-like sources of light with a high degree of directionality. But Sharp developed proprietary optical design technology that reduces light absorption and boosts the percentage of light utilized by treating surfaces to have high reflectivity. This technology provides efficient surface-emitting illumination while minimizing the uneven color and variations in light intensity that have been problems with LED-based lighting in the past.
 
Proprietary optical design achieves lighting intensity of 1,000 lux at a distance of three meters directly underneath the fixture, the industry's highest class.

With fluorescent lights, the distribution of light may be more spread out than necessary in spaces with high ceilings such as factories and warehouses because of diffusion of the light. But the DL-N003N High-Intensity Spot-Pattern Luminaire delivers 1,000 lux of illumination directly underneath the fixture at a distance of three meters based on optical design technology that employs a proprietary condenser lens. Adequate levels of illumination can be ensured with good efficiency even in spaces with high ceilings.

Long product life (40,000 hours):
These LED Lightings offer excellent heat dissipation capacity based on configuring the low-power LED in a uniformly spaced array in order to efficiently disperse the heat generated by the LEDs. This arrangement minimizes deterioration in light output resulting from LED-generated heat and ensures a consistent, ample level of illumination. As a result, these units have design product life of 40,000 hours, and can be expected to remain in operation for 10 years or longer, even when lit for 10 hours per day. They are ideal for installation in locations that require lights to remain on for long periods of time, or in locations where lamp replacement is difficult such as high places and multi-story open spaces like stairwells and foyers.

Environmental Features:
Power consumption 25% lower than lighting devices that use twin 40-watt-equivalent straight-tube fluorescent lamps, currently the dominant light source used in factories, offices and commercial spaces.
Use no toxic mercury.
Use lead-free solder.
Completely eliminated specific bromine-based flame retardants.
Designed for Safety:
Double-insulated construction
Flame retardant materials used

Specifications:
 
Type Oblong Square
Model DL-N001N DL-N002N DL-N006N DL-N003N DL-A001N
Light source High-efficiency neutral white LEDs High-efficiency neutral white equivalent LEDs High-efficiency neutral white LEDs
Emission color temperature 5000 K 4800 K 4900 K 5600 K 4900 K
Luminaire luminous flux (lumens) 4,650 4,250 4,500 2,800 6,300
Downward illuminance (distance of 1 meter immediately underneath) 1,470 lux 1,270 lux 1,460 lux 4,000 lux 1,800 lux
Power source voltage (volts) 100/200 V
Power consumption (watts) 65/63 W 61/69 W 118/116 W
Exterior dimensions 1,146 (L) x 115 (W) x 68 (H) mm 620 (W) x 620 (D) x 40 (H) mm
Weight 3 kg 5 kg
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