Lamp for installing on the roof of a vehicle having a seat and a main body pivotable about a first axis and a lamp member pivotable about a second axis

A lamp, adapted for being installed on a roof of a vehicle, the lamp including:

• a seat, adapted for being installed on the roof of the vehicle, the seat defining a first pivot axis substantially perpendicular to the roof of the vehicle;
• a main body, having a first end and an opposite second end, the main body being pivotally disposed on the seat with the first end thereof so as to be pivotable with respect to the seat around the first pivot axis, a second pivot axis being defined at the second end of the main body;
• a lamp member, pivotally disposed on the second end of the main body so as to be pivotable with respect to the main body, the lamp member including a luminous device which is able to emit light;
• wherein the first pivot axis is non-parallel to the second pivot axis;
• wherein the seat has a third end and an opposite fourth end, the first pivot axis passes through the third end, the first end of the main body is pivoted to the third end;
• wherein the seat further has a lateral periphery extending between the third end and the fourth end, there exists a distance from the first pivot axis to the second pivot axis which is greater than a distance from the first pivot axis to the lateral periphery of the seat;
• wherein as viewed along the first pivot axis, the second pivot axis is adjustably located outside the seat and beyond the lateral periphery of the seat as the second end of the main body is swung away from the fourth end of the seat.