LED Intensity

Discussion in 'General Electronics Chat' started by RodneyB, Aug 18, 2014.

  1. RodneyB

    Thread Starter Active Member

    Apr 28, 2012
    633
    13
    I am trying to understand which LED is brighter and why

    I have one and the datasheet shows an LED 585nm 3KR , 583nm, 10mcd, 120 DEGREES

    The second LED datasheet shows LED SMD 1206 CL-YL 180m 60D 3K SURFACE MOUNT LED, 1206, CLEAR YELLOW 595nm, 180mcd, 60 DEGREES

    My understanding is the higher the mcd value the brighter the LED is that correct. I am getting so much mixed information I am lost.
     
  2. Benzodiazepine

    New Member

    Aug 17, 2014
    17
    1
    Yes MCD (Millicandella) -- denotes brightness. The degrees is the viewing angle. How far the light spreads.
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,156
    3,064
    Note that you can quote a very high mcd value if you use a lens to focus a narrow beam. This makes it hard to compare values when the dispersions angles are different.
     
  4. KJ6EAD

    Senior Member

    Apr 30, 2011
    1,425
    363
Loading...