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halo effect

The Moore Tube Light, 1904.
This consisted of a tube about 1¾ inches in diameter and having a length up to 200 feet, in which air at about one thousandth part of atmospheric pressure was made to glow by a very high voltage alternating current.

“The first installation of this form of lamp was in a hardware store in Newark, N.J.”

in section Incandescent Light Developments, 1894-1904
Henry Schroeder, History of Electric Light, Smithsonian Miscellaneous Collections 76:2 (August 15, 1923) : link (hathitrust)

Henry Schroder (1879-1952)
bio (by Edward J. Covington) and portrait at lamptech.co.uk : link (accessed 20230426)
lamptech : Museum of Electric Light Technology : link

26 April 2023