| The purpose of this paper was to determine the impact of operating temperatures on the warranty limits for Light Emitting Diode (LED) based streetlights in Alaska. In order to define the impact of operational temperature, an experimental model was built based on cold environment testing results. The cold environment experiment provided model input values correlating temperature with LED power consumption.A dynamic model forecasts reliability of the individual components of an LED-based street lighting system with parametrically assessed temperature values, in both the continental U.S. and Alaska, based on failure rate values. ExtendSim software was used for simulation purposes, with results indicating that a temperature decrease of 20°C corresponds to an increase of 25% in the LED lifecycle and extends the duration of the warranty policy from five to eight years. |
