Nettetdata from the LED supplier is used. The data from the LED supplier is called LM80 data. The TM-21 system originates Declaring the life time of LED-luminaires in the U.S. and is globally accepted. The LED suppliers test their LEDs over a minimum of 6.000 h and measure the lu-men drop every 1.000 h. These values are put into the TM- NettetChange your shutter speed. The first and likely easiest way is to align your shutter speed with the rate of the LEDs’ flickering. In other words, match your shutter speed with multiples of the LEDs’ Hertz. Most of the world runs on 50 Hz, while the US runs on 60 Hz, but it doesn’t hurt to double-check first.

Lighting – Analysis - IEA

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