Question 1
Which of the following is a standard procedure when replacing a 'ballast' or 'driver' in a lighting fixture in a commercial building?
Question 2
Which component in an LED fixture performs the task of converting incoming 120V AC into the low-voltage DC required by the LED chips?
Question 3
A dimming issue is reported on a bank of LED troffers controlled by an electronic dimmer. The lights flicker and do not dim smoothly. All connections are tight. What is the MOST likely cause?
Question 4
When controlling LED fixtures, what is the difference between Constant Current and Constant Voltage drivers?