What effect does voltage have on lamp life?

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Answer

LED and lamp life are directly related to the voltage supplied to the fixture. Excessive voltage generates excess heat and will shorten the life of your LED or lamp.

Correctly sizing the transformer and taking voltmeter readings are imperative to ensure your fixtures operate as warranted.

Voltage effects on LED and lamp life…

  • 13.0 volts… only 2/3 of rated life
  • 12.5 volts… only 3/4 of rated life
  • 12.0 volts… as rated by manufacturer
  • 11.0 volts… up to 2x rated life
  • 10.0 volts… up to 3x rated life

These are approximate values as the actual life varies on many factors.