he Planet Light SmartLight uses patented Natural Spectrum illumination to improve visual acuity, reduce eyestrain and increase focus and concentration. Natural Spectrum light creates greater contrast and truer colors to help you read faster with greater comprehension.Planet Light SmartLight, White: Flexible gooseneck for precise positioning of light Flicker-free electronics reduce glare, eyestrain and fatigue On/off switch, 6" power cord, 1-year warranty