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Soraa achieves 75% wall-plug-efficiency on GaN LED technology

05 Mar 2014  | Paul Buckley

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The third generation GaN on GaN LED developed by Soraa sets a new record with its 75 per cent wall-plug-efficiency at a current density of 35A/cm2 and a junction temperature of 85°C. The company claims that its product outperforms its nearest competitor by 20 per cent at normal operating conditions.

In one year, Soraa has achieved a 30 per cent increase in white lumen per watt (lm/W) efficiency compared with the company's prior generation LED and aims to make the Gen3 LED available in the second quarter of 2014 in a variety of product offerings: modules, large form factor PAR and AR lamps, and MR16 lamps.

Soraa's full-visible-spectrum PAR30L lamp, powered by its Gen3 LED, will lead the market not only in light output, but also in colour and whiteness rendering; at CRI-95 and R9-95 it will achieve centre-beam intensity (CBCP) of 28,250cd at 8 beam angle, 10 per cent higher than the CRI-85 offering of the nearest competitor.

Soraa's large form factor lamps will feature all the signature elements of light quality that its customers are accustomed to: natural and accurate rendering of colours and whiteness, uniform beams of exceptionally high intensity, and clear single shadows.

Soraa's Gen3 LED uses the properties of the native GaN substrate and a chip-on-board LED package design to create a robust, single point source that enables excellent beam control.

By adopting a proprietary three-phosphor combination, Soraa's Gen3 LED emits full-visible-spectrum light (all the colours of the rainbow, including violet), which excites optical brightening agents and perfectly renders whiteness as well as colours.

Soraa's GaN on GaN LED material allows reliable operation at high current densities. The material has 1000 times fewer defects than conventional LEDs, which have GaN layers on cheaper foreign substrates like sapphire, silicon carbide or silicon.

Soraa's LEDs emit 10 times more light per unit area of LED material than conventional LEDs. GaN on GaNs optical transparency and high thermal and electrical conductivity also enables a robust, simple LED design that delivers maximum light output and performance.

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