Chamaeleon light design supports optimal performance of LEDs

Released: 21-Aug-2014

The Chamaeleon light’s patented dual circuit design allows for a permanent level of background lighting via the standby circuit, powered by 2 LEDs. Once a presence is detected in the area, the in-built microwave sensor automatically switches the light’s main circuit. Effectively this means that the light is never off.

Many people ask if this impacts the lifespan of the LEDs, given its permanent operation, compared with an LED light that switches “off”.

Our response

To clarify and reassure our customers, we have sought further information from the Chamaeleon light’s Rebel ES LED chip manufacturer, Lumileds, a division of Philips.

Philips Lumileds Technical Solutions Manager for ASEAN, Australia & New Zealand, Mr Freddy Goh Seng Geap replies:

 “Our LUXEON Rebel ES is a proven device that has millions of hours of test data with both an impressive lumen maintenance performance and best-in-class reliability. When the LUXEON Rebel was introduced in 2007, it was a watershed for high power LEDs to achieve never before possible lumens per watt (lm/W). This device triggered the LEDification we see today in the general illumination market.

enLighten’s patented dual-circuit design takes full advantage of our LUXEON Rebel ES’ unsurpassed lumen maintenance at low current and low temperature. In addition to their high-performance our testing indicates that these LEDs will operate for at least 10 years with minimal light degradation.

LM80 Testing

The LM80 test is an industry standard international testing method for measuring how the LED light source performs over a period of time and under certain set conditions.  The results are presented as lumen maintenance.

The results of the LM80 tests for the Rebel ES have been extraordinary , indicating that it will be decades before the lights drop to the specified 70% lumen maintenance level .

What this means for the Chamaeleon

These test results on the LEDs along with the data from over the 60,000 Chamaeleons that we have sold indicate a high rate of reliability. 

The failure rate of product returns received are as follows:

  1. 0.043% failure rate of LEDs
  2. 0.19% failures of other components

 enLighten CEO Steve Cahill translates these results. “The failure statistics that we have experienced combined with the reliability testing by Lumileds confirms what we have been saying in relation to the reliability of the Chamaeleon.”

“Our belief has always been that that the point of failure will most likely come from the other electrical components being the drivers, power supplies or sensor.  Failure rates over the past 3 years have been very low.”

“Compared with traditional fluorescent lighting where the tube needed to be replaced approximately every 18 months, we would anticipate that the standby LEDs may need to be replaced after 10 years.”

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