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Holophane’s soak testing tackles early failure of LED light engines

As part of its robust quality control procedures, Holophane subjects every LED light engine to stringent ‘soak testing’ to reduce the probability of early failure.

As a result, users of Holophane LED lighting products can rely on long life with high performance and low cost of ownership.

Crucially, the light engines are tested against a range of parameters addressing key performance characteristics. These include failure of LEDs or printed circuit boards, reduced lumen output and any shift in colour appearance.

All electronic devices have a common failure profile whereby early failures, also known as ‘infant’ failures, can be identified and discarded. The devices that show a positive profile can then be relied upon to deliver many years of reliable performance.

Holophane’s soak testing procedures subject each LED light engine to a pre-determined power and ambient temperature test profile, emulating the ‘worst case’ conditions the engine will experience in a live environment. Each engine is tested over a 47 hour period, during which time it experiences the maximum ambient temperature of any product that it might be assembled into. Consequently, Holophane is able to offer its customers complete peace of mind that its LED light engines will deliver on life expectancy, light output and light quality.




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