What is Lighting flicker?

As slow motion videography becomes more common in broadcasting, the requirement to ensure that there is no visible flickering becomes more important. It may also be of value in office environments where high-speed flicker can often trigger headaches. Flickering in LED luminaires is largely a result of the driver and can be minimised by either using a flicker free driver (if this is an option) or re-specifying to a flicker free fitting.