IEC TR 61547-1:20 20作为IEC TR 61547-1:20 20 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC TR 61547-1:20 20描述了物镜光闪烁计，可用于以下目的: -在没有施加电压波动的情况下测量所有照明设备在照度闪烁方面的固有性能；在该测量期间，照明设备由稳定的市电供电； -就照度闪烁而言，测试照明设备对交流电源上的(无意的)电压波动干扰的抗扰性能；在该测试期间，将一组规定的电压波动施加到交流电源，并确定照明设备对干扰的抗扰度。除了上述两个目的之外，还可以针对例如由市电信号引起的AC市电上的有意电压波动来测试照明设备的抗扰性能。然而，这在本文档中没有进一步详细描述。这第三版取消并取代了2017年出版的第二版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: -本文件的范围已经澄清，以区分在没有电压波动的情况下测量照明设备的固有性能的闪烁测试和在其中施加一组特定电压波动以测量照明设备对存在于电源上的电压波动的抗扰度的闪烁测试； -澄清了闪烁测试的测试程序。

IEC TR 61547-1:2020 is available as IEC TR 61547-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC TR 61547-1:2020 describes an objective light flickermeter, which can be applied for the following purposes:
- measuring the intrinsic performance of all lighting equipment without the application of voltage fluctuations in terms of illuminance flicker; during this measurement, the lighting equipment is supplied with a stable mains;
- testing the immunity performance of lighting equipment against (unintentional) voltage fluctuation disturbance on the AC mains in terms of illuminance flicker; during this test a set of defined voltage fluctuations are applied to the AC mains and the immunity of the lighting equipment to the disturbance is determined.
Apart from the above two purposes, the immunity performance of lighting equipment can also be tested against intentional voltage fluctuation on the AC mains arising for example from mains signalling. This is however not described in further detail in this document. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the scope of this document has been clarified to make a distinction between flicker testing without voltage fluctuations to measure the intrinsic performance of lighting equipment and flicker testing in which a specific set of voltage fluctuations are applied in order to measure the immunity of the lighting equipment to voltage fluctuations present on the mains;
- the test procedure for flicker testing has been clarified.