I am electrosensitive, and light sensitivity to a particular type of lighting seems to be part of this. Some older fluorescent lights cause me pain, and also some LEDs, but not all. I do not know in advance which will be bad for me.
Recently some external LED lighting was installed on a new building next to the church which I attend. They give a bright white pinpoint light, which seems as bright as a street light, although they are only 6 watts. When I first passed them along the path, which goes within a foot of one of them, I got the strongest reaction I have ever had to any electrical device. My main symptom is a burning pain in the tongue, and within a few seconds it was as if my tongue had had boiling water poured on it. The effect increased in the first hours, and then took several weeks to subside. My susceptibility to other electromagnetic triggers increased as a result. I had an electronic engineer come to check these lights. He found no radio frequency being emitted, but did detect a frequency of 100hz. He had no means of testing the luminosity or light frequency. Luckily the church warden is sympathetic to my plight and has had the lights turned off at the mains, pending a suitable alternative.