The essay deals with luminaries in the LED segment. The essay deals in particular with why the light sources in LED lighting fixtures usually is designed so that the light sources are not replaceble. Methods used in this work has been; information searching, qualitative interviews, technical LED module inventory and construction surveys. Methods used in the product development phase have been; technical information studies, Idea inventory by visual idea generation, image boards and sketching process (thinking with a pen). The aim of the project was to develop an LED fixture with a replaceable light source. The result of the project became an LED floor fixture with replaceable light source. The light source used in the luminarie is of the young voluntary industry standard for LED modules, Zhaga.