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140 TECHNOLOGY / LED


LEDs provide up to 113 lumens and 117 lumens per watt and neutral-white (4000K) XM-L LEDs provide up to 134 lumens and 138 lumens per watt, both at 350mA. At 700mA, warm-white (3000K) XLamp XM-L LEDs pro- vide up to 220 lumens and 108 lumens per watt and neutral-white (4000K) XM-L LEDs provide up to 260 lumens and 128 lumens per watt. Driven at 3A, XM-L neutral-white LEDs produce 850 lumens at 84 lumens per watt. SEOUL SEMICONDUCTOR: The Acriche A7 range was improved in terms of reliability and ESD-withstand and upgraded technol- ogy allows operation under both AC and DC power supplies (110V/220V) without the need for a converter. The 3.2W LED, provides 305 lumens in an ultra-small, ce- ramic-circuit package (8x8x3.7mm) which is well-suited for commercial lighting products such as downlights, MR16, PAR30 and PAR38 replacement lamps. The Acriche A8 was launched to replace 60W incandescent bulbs with a single pack- age and reduced cost by removing the SMD process of dozens of DC LED packages on expensive metal substrates. The ultra-thin package (25 x 22 x 2mm) COB device pro- vides 700lm output with enough efficiency to replace a 60W light bulb with only one A8 package.


APRIL 2011 SEOUL SEMICONDUCTOR: Announced the Z4 which provides the best brightness, ef- ficiency and colour rendering properties of 1W LED with CRI greater than 85. The Z4 prevents degradation in high temperature and is available in two colours: warm white and cool white. CREE: Announced the industry’s first light- ing-class LED component that combines the high light output and small footprint of the XLamp XM-L LED package with Cree’s EasyWhite colour mixing technology. At just 4 watts of power, XM-L EasyWhite LEDs produce up to 340 lumens at an operating temperature of 85C in warm white (3000K) in a single component.


Cree also launched the LED LMH6 module, a high-lumen LED module designed to further simplify lighting design for Cree custom- ers in Europe and Asia. The module targets commercial applications where high ef- ficacy, brightness and light quality are criti- cal, such as restaurants, retail, airports, schools and hospitality lighting. Designed to last at least 50,000 hours, the LMH6 module delivers 2000 lumens at 74 lumens per watt or 2900 lumens at 78 lumens per watt. It is available in 3000K and 4000K colour temperatures, both with a CRI of 90. Fully- integrated DALI dimming allows for greater


flexibility and control when compared to traditional dimming systems. Cree announced the LED-based CR family of solid-state-lighting (SSL) fixtures, shown in figure 5, that are designed specifically as alternatives to high-end, architectural, fluorescent fixtures in applications such as offices and schools. Delivering 90 to 110lm/ W efficacy, the fixtures, according to Cree, will offer payback inside of one year rela- tive to T8 linear fluorescent fixtures with comparable light output.


Cree will offer the luminaires in 1ft x 4ft (CR14), 2ft x 4ft (CR24), and 2ft x 2ft (CR22) versions. Each of the products is available in a choice of 3500K and 4000K colour temperatures, with a CRI of 90. Moreover, each are available in a number of performance options. For example, the CR24 comes in 2200-lm, 4000-lm, and 5000- lm models. In fact there are two choices at 4000 lm with the option of 90 or 110lm/W efficacy.


Figure 6: The new SoloLux high output LED module from Luminus Devices.


Figure 5: The Cree CR family of tile lights using a colour mixing chamber.


MAY 2011


LUMINUS DEVICES: Together with T-Opto, announced the introduction of the SoloLux high output LED module, a high efficacy sub-system for high lumen general lighting applications that typically utilise a 175W metal halide source. SoloLux is designed for indoor and outdoor installations requiring many thousands of lumens such as parking area, roadway, canopy, high bay and high ceiling down lights. The patent-pending module produces up to 6,500 lumens from a single source that reduces fixture cost and complexity when compared against alternate solutions that use arrays of low power LEDs. Luminus also launched the SSM-80, a surface mounted 4 die LED emitter that is available in a variety of colour temperatures. The large die area enables the 3000K to have an efficacy over 100lm/W and a flux over 1,600 lumens. The high density small form-factor light source is ideal for spot and direc- tional applications and is available in ANSI compatible flux binning. The SSM-80 has a very low thermal resistance of 1.0C/W and the lumen maintenance is greater than 70% after 60,000 hours.


BRIDGELUX: Introduced the new Helieon 120V AC sustainable light module that eliminates the need for external electronic components, delivering a high quality TRIAC dimmable solution to simplify the design process. In addition to adding the electronic driver functionality, the available product options for the Helieon 120V AC module will be expanded with the introduction of a 2000 operational lumen option and the ad- dition of a 120 degree viewing angle option to complement the 24, 32 and 50 degree options available today. The initial product launch will include 1200 and 2000 lumen performance options in 3000K CCT with 32 and 120 degree viewing angle options. Bridgelux launched the third generation of its advanced LED Arrays, including its indus- try-leading LS, ES, and award-winning RS product families. This new product genera- tion features the latest technical advance- ments in epitaxial GaN layer growth, LED chip design and packaging technologies, delivering an increase in efficacy of up to 20% and a reduction of up to 30% in the cost per lumen compared to previous product generations. The Bridgelux product portfolio includes light output performance ranging from 240 to 10,000 lumens continuing the expansion of the industry’s broadest range of high performance lighting class LED light sources. These third generation arrays are available in a broad range of colour temperatures ranging from 2700K to 5600K with 3 SDCM colour control options to en- able clean and consistent lighting installa- tions. Additionally multiple CRI options are now available, providing increased design flexibility for lamp and luminaire manufac- turers. OSRAM: Announced a new sub-1W LED that specifically targets linear and planar lighting. The company intends for the Duris E3 LEDs to be placed closely together in luminaires and linear retrofit tubes so that people perceive a uniform source of light rather than individual point sources. The Duris E3 LEDs have a broad 120° beam angle and measure only 3 x 1.4mm. Osram intends for the LEDs to be mounted closely together so that a person perceives a single bright


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