Abstract: A lamp housing inserted into an installation-opening has an outer surface and an inner surface, a slot going through the outer surface into the inner surface, and a locking device connected to the outer surface. The locking device has an elongated member with a protruding part. The protruding part has a bottom and top part with a pushing-surface and a contacting-surface. The elongated member pivots between a first and second position. In the first position, the bottom part is inside the slot, and the top part is inside the housing, whereby the contacting-surface and pushing-surface are inside the housing. In the second position, the bottom part is outside the slot, and the top part is partly inside the slot, whereby the contacting-surface contacts the outer surface and the pushing-surface is between the outer and inner surface, whereby the housing can be wedged in the installation-opening by the elongated member.

Abstract: The present application relate to a lighting device comprising a main body having an inner surface and an outer surface. The inner surface at least in part forming a section for receiving a light source. The outer surface having a first thread along at least part of said outer surface, wherein said first thread is for directly or indirectly securing the lighting device in a building part. The invention further relates to a receiving element and an insertion for use with the lighting device.

Abstract: A lamp housing inserted into an installation-opening has an outer surface and an inner surface, a slot going through the outer surface into the inner surface, and a locking device connected to the outer surface. The locking device has an elongated member with a protruding part. The protruding part has a bottom and top part with a pushing-surface and a contacting-surface. The elongated member pivots between a first and second position. In the first position, the bottom part is inside the slot, and the top part is inside the housing, whereby the contacting-surface and pushing-surface are inside the housing. In the second position, the bottom part is outside the slot, and the top part is partly inside the slot, whereby the contacting-surface contacts the outer surface and the pushing-surface is between the outer and inner surface, whereby the housing can be wedged in the installation-opening by the elongated member.

Abstract: The present application relates to a lighting device (1) comprising a main body (2) having an inner surface (3) and an outer surface (4). The inner surface (3) at least in part forming a section (12) for receiving a light source. The outer surface (4) having a first thread (8) along at least part of said outer surface (4), wherein said first thread (8) is for directly or indirectly securing the lighting device (1) in a building part. The invention further relates to a receiving element (17) and an insertion (29) for use with the lighting device (1).

Abstract: The invention regards a plug comprising a housing, a number of connectors and a selector outlet having a movable selector part whereby the configuration of the connectors may be changed when the selector part is moved. The housing may have a triangular cross section defined by a first side A, a second side B and a third side C and where the number of connectors allows for connection of two or more electrical circuits. The invention also relates to a system of plugs and a method of producing the same.