Practice question

What is an LED driver's 'constant current' operating mode?

  1. The driver supplies a fixed voltage regardless of the LED load
  2. The driver maintains a fixed current output (in milliamps) to the LED array regardless of voltage variations
  3. The driver operates only at maximum brightness
  4. The driver turns on and off at regular intervals

Answer: B — The driver maintains a fixed current output (in milliamps) to the LED array regardless of voltage variations

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