A lighting fixture with arms, comprising at least a central body, a plurality of protruding radial arms and clutching means for fastening said arms to the central body and for the electric connection of the bulb-carrying arms, comprising a fixed element (1) connected to said central body and a movable element (3,3′) connected to the end portion of each arm and introduced into the fixed element (1). The movable element (3′), connected to the end of an arm (4) carrying no bulb, is provided at the end portion with a blind tube (25) and the movable element (3), connected to the end of an arm (5) carrying a bulb (6), is provided with two electrical wins (41) connecting a bulb-holder for the bulb (6) to an electric contact means (15,17) that protrudes from the movable element (3) facing the fixed element(1).