Large commercial jet takes off at sunset with lights on

Pulselite® Increases Lamp Life

Pulsing the lights extend lamp life by a minimum of 300%

Smooth transitions between ‘dim’ and ‘bright’ mode reduces operation temperature of lamp filaments and eliminates constant electrical jolts and spikes of ‘on-off’ circuitry.

Incandescent lights are like car engines “For car engines the engine wear is maximum at initial turn on, and wear increases if we run the engine at maximum performance. Your car engine will last longer if you run it at a normal cruise speed. Similarly, an incandescent filament has its highest potential for damage when the light is turned on from cold and is run at maximum filament temperature. Pulsing the light allows the filament to run at approximately 70% of normal filament output and only allows the filament to cool to a 15% output state before rising again. Reduced average voltage on the lamp is key to long lamp life just as reduced speeds on your car are key to its longevity.” -Scott Philiben, Aircraft Modification Engineer.

Sunstate/Qantaslink Trial Findings

The average lamp life for the Pulselite equipped aircraft was approximately 1860 hours compared to approximately 630 hours for the non-Pulselite aircraft, i.e. the Pulselite system extended the lamp life by a factor of three (3).

Applying trend analysis to the factual data collected indicates that the Pulselite equipped DHC8-300 fleet may experience extended lamp life in the range of approximately 800 hours to 3,000 hours, or more while the non-Pulselite fleet may expect to continue an average of approximately 600 hours for their lamp life. (Prepared for Sunstate Airlines/QantasLink by Peter Reardon Enterprises Pty Limited).


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