Digital Camera recording LED Blue Light Frequencies? EMF / EMR?

Makes a change from Frequencies in the Clouds & I wasn't being too fussy when it comes to Focus. Can do this again with any of the other 3 Cameras, but they all displayed the same Waves on the Wall. These Waves were visible to the naked eye although they didn't register quite as easy as on the Cameras. The Camera used on this occasion was a Nikon D7000 using Manual Focus, well, eventually using Manual Focus :)

The EMF / EMR meter was a bit indecisive because we get anomalous readings in various locations around the House anyway, with 1 location in the Kitchen, in Mid-air where where there are no Electrics which should be causing such dangerous spikes on the meter (Both, Electric & Magnetic)? This one we cannot explain?

Surprisingly there is very little to no activity from the Smart Meters? Maybe they are just ideal for SIM targeting by DEW's? Gas especially? ... https://www.youtube.com/watch?v=rgQ2ilRuz3U