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Stalactite Cave

The extraordinary Stalactite Cave in the Center of Israel was found by accident in 1968 and was declared a nature reserve in March 1975. The area of the cave is 4,800 square meters and its volume is 25,000 cubic meters. The temperature is around 22°C and the humidity ranges from 92%-100%.
When the Israel Nature and Parks Authority decided to replace the lighting in the cave, they insisted on using new LED technology to ensure the cave is maintenance-free over the next few years.  There were several conditions: a) no use of white LEDs due to the harmful wavelength for the stalactites; b) it must have an IP67 outdoor rating due to the humidity levels; and c) it needs to be dimmed and controlled linearly.
Lighting designer Micha Margalit chose d-led as the company to support the many tests required to achieve the correct selection of LEDs that the geologists would approve.  The new d-led HIVE fixture was chosen to light the caves, since it will last for many years.
d-led supplied 180 HIVE-12 units with 20° lenses and BGA LEDs (Blue/Green/Amber) and 140 HIVE-6 units with 8.3° lenses and Amber LEDs, connected to 20 MegaAce ER-SD controllers.
The walking path along the cave was illuminated by 170 Amber Rebel Star LEDs installed inside the handrail.
The breath-taking outcome stunned everyone (including us)!!!



Project: Stalactite Cave, Israel
Date: 07/2012
Light designer: Micha Margalit





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