Verilux VF05NA1 Shelburne Deluxe Natural Spectrum Floor Lamp Fashioned after early 20th century banker's lamps, the Shelburne is a functional and historically significant design. Clean and balanced Natural Spectrum light brings daylight indoors providing illumination with greater contrast and true color rendering. Flicker Elimination Technology and Optix Glare Control virtually eliminate fatigue and eyestrain. Energy efficient lighting system provides an equivalent of 150 watts of incandescent illumination from a 27 watt bulb.