AIDA was the brand of Hirschhorn AG Berlin. In 1926, Hirschhorn, together with Ehrich & Graetz (Petromax), Continental-Licht and Hugo Schneider (HASAG), advanced the development of carburetor lamps and built pressure gas lamps. In 1928, the brand name AIDA was bought by Ehrich & Graetz - newly founded "AIDA Gesellschaft". After World War II, lamps of the brand AIDA were manufactured at Graetz parallel and structurally identical to the Petromax lamps on the same machines. The lamps differed only in the lettering.
