Ridgewood is for those who relish manual functionality and tactile details. It sets a tube within a tube, allowing you to control its length. Knurled knobs and ends to the metal scroll are not merely decorative-they reposition length of light and angle of illumination.,Ridgewood is for those who relish manual functionality and tactile details. It sets a tube within a tube, allowing you to control its length. Knurled knobs and ends to the metal scroll are not merely decorative-they reposition length of light and angle of illumination.