Soraa’s gallium nitride (GaN) LED lamps have been installed at the Western Australian Museum in Perth, Western Australia to illuminate the exhibit – A History of the World in 100 Objects, a collection of the British Museum.
From the earliest tools made of humble stone to colourful Javanese shadow puppets, the objects in the exhibit provide an unwritten insight into human cultures across time, from two million years ago to the present. The challenge was to find the right lighting to accurately render colours and whiteness while meeting specific lighting guidelines to keep artifacts safe.
To meet the guidelines, Soraa’s Australian partners, Lighting Options Australia, and lighting designers at Illuminated Design chose 150 of the company’s VIVID MR16 lamps. Utilising every colour in the rainbow, especially deep red emission, the lamps render warm tones beautifully and accurately, and achieve a colour-rendering index of 95 and deep red rendering of 95. And unlike blue-based white LEDs without any violet emission, the company’s lamps have violet emissions to properly excite fluorescing brightening agents, including natural objects and white materials such as textiles and paper. With no UV and IR radiation, low heat output and the ability to dim to specified light levels, the objects are protected from light and heat degradation.
“This is one of the best known exhibits on loan to the museum,” said Ben Conick, Lighting Options Australia, “and this system provided the flexibility needed to protect the rare artifacts and illuminate them perfectly. The lamp have great colour rendering, colour temperature, beam angles and additional lenses to change the distribution. The magnetic attachment of filters, the SNAPS, are quite impressive,” said Frederika Perey, Illuminated Design. “They are easy to apply, allowing me the flexibility to change the approach during the focusing process. This is critical when lighting exhibits.”
The SNAP system is a magnetic attachment accessory system. According to Soraa, due to its bright, single light source made possible by gallium nitride technology and prismatic optic, the lamps can accept a magnet in the center of the lens without any major effect on light output.