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a general term for any ERS (ellipsoidal reflector spotlight), (eg. source four) with shutters, accessory slot, gobo slot, and adjustable/changeable barrel. Leko refers to the Lekolite released in 1933 that became extremely popular, and while the actual lights bearing the brand name Leko have become less common, the term has stuck for all ERS instruments.
Bobby the inferior: What should we use for the front lights?

Danny the designer: well we've got all those lekos laying around.

Bobby: You mean those source fours?

Danny: of course
by lightmeup June 04, 2010
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