A portable or landscape lamp or luminaire for illumination, decorative lighting, or lighting to encourage the growth of plants, consists of a clamping base including a housing for device electronics, a control panel disposed on an outer surface of the clamping base for receiving user input, and a plurality of a gooseneck lamps supported by the clamping base and having LEDs for selectively emitting light under the control of the device electronics as directed by the user input through the control panel.