Glaring LED in a park in Vienna
Image taken with a Canon 550D at ISO 3200, f=17mm, f/5.6, 0.2sec
A 35 Watt neutral-white LED is sufficient to produce extreme glare - painful for the eye.
(c) Thomas Posch, 2012
Globe lights with >50% uplight
Image taken with a Canon 550D at ISO 3200, f=28mm, f/4.5, 0.05sec
(c) Thomas Posch, 2012
Testing LEDs with different colour temperatures (I)
Image taken with a Canon Eos 550D at ISO 3200, f=28mm, f/4.5, 0.05sec
In the foreground: neutral-white LEDs, in the background: warm-white LEDs.
(c) Thomas Posch, 2012
Testing LEDs with different colour temperatures (II)
Image taken with a Canon Eos 550D at ISO 3200, f= 28mm, f/4.5, 0.05sec
Warm-white LED in the foreground, globe lights in the far background
(c) Thomas Posch, 2012
Difference in glare between poorly designed lamps and full cutoff lamps
Author Christopher Kyba
Acceptable and Unacceptable Lighting Fixtures
Author Bob Crelin
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Action ES1204 LoNNe, Loss of the Night Network Background "View over Paris" BY Benh LIEU SONG, CC-BY-SA 3.0