A sculpture in blue fluorescent light by Dan Flavin, titled untitled (to Helga and Carlo, with respect and affection), dated 1974.

Dan Flavin 

untitled (to Helga and Carlo, with respect and affection)

, 1974

Blue fluorescent light

modular units, each made with two 4 ft. (122 cm) vertical fixtures and three 4 ft. (122 cm) horizontal fixtures 
length variable

© Stephen Flavin/Artists Rights Society (ARS), New York

A sculpture in blue fluorescent light by Dan Flavin, titled untitled (to Helga and Carlo, with respect and affection), dated 1974.