illuminated switch การใช้

Military specifications for illuminated switches, panels, and displays, such as MIL-PRF-22885 and SAE AS7788, also require luminance measurements in foot-lamberts.
I wouldn't disagree, given that a while back I counted more than 100 illuminated switches, many quite small, in an Audi A8.
Single pole illuminated switches derive the power to energize their in-built illuminating source ( usually, a " neon " lamp ) from the current passing through the lamp ( s ) which they control.
Such switches work satisfactorily with incandescent lamps, halogen lighting and non-electronic fluorescent fixtures, since the small current required for the switch's illuminating source is too small to produce any visible light from such devices controlled by the illuminated switch.