An indoor lighting and climate system includes a plurality of lighting units arranged in a dispersed manner in a room and a control unit arranged to control the operation of the lighting units in relation to preset climate settings and input signals from at least one temperature sensor, wherein each of said lighting units include a cup shaped housing with an opening, a lamp attachment fora lamp, an open inside space between said lamp and said cup shaped housing, and a fan arranged to produce a forced air flow in said space, characterized in that a circumferentially extending inner dividing wall member is arranged within said cup shaped housing, which circumferentially extending dividing wall separates said open inside space from a heat flow channel arranged within said cup shaped housing.