Lightmeter LM10
In case of incandescent lamps and halogen lamps, the flicker frequency is always 100 Hz and the
flickering rate is from 15% to 25%. Low-volt halogen lamps with electronic power supply are an
exception.
Brightness of a compact fluorescent lamp (Flicker rate 31%, flicker frequency 49 Hz)
Compact fluorescent lamps also known as energy-saving lamps have a flicker frequency in the
range from approx. 20 kHz to 150 kHz due to the integrated electronic power supply. The flick-
ering rate is typically from 20% to 40%.
Brightness of an LED lamp (Flicker rate 100%, flicker frequency 49 Hz)
As the brightness of an LED responds almost without lag to its operating current, a general state-
ment on the flicker rate and flicker frequency for these lamps is not possible.The flicker rate can lie
between 0% to 100%, depending on the voltage source used (power supply). Flickering frequecies
of 50 Hz to a few 100 kHz are possible. Hence, the quality of the voltage source is of greater
importance in LED lamps.
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