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GEW – HALT confirms longevity of LED UV systems

During the test cycle the LED lamp-heads are operated at ambient temperatures of up to 50°C (122°F) and at up to 95% humidity

UK • The UV system manufacturer has made use of HALT (Highly accelerated life test) procedures to further improve the performance and the longevity of its LED UV systems. In the specialised environmental test chamber at the GEW headquarters, such systems are exposed to extreme temperature and humidity profiles and continuously monitored to confirm the performance and reliability of the LED lamp-heads.

The impact of environmental conditions varies with the geographical locations and the climate in which UV systems are installed. Therefore, during the test cycle the LED lamp-heads are operated at ambient temperatures of up to 50°C (122°F) and at up to 95% humidity. HALT proactively tests the life cycle and thereby increase product durability and reliability when operating under the harshest conditions. Reliability tests and HALT testing of LED arrays carried out at GEW have convincingly indicated a potential service length of over 20,000 hours even in adverse conditions, about seven to ten times longer than that of a conventional mercury-arc lamp with 2,000 to 3,000 hours.

Armin Karl Geiger

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