These are the reading glasses that clearly illuminate subjects immediately in front of you while keeping the surrounding area in darkness. With built-in LEDs in the upper corners of the lens frame, they are ideal for reading in bed without disturbing a sleeping partner, repairing a fuse during a power outage, or examining a map in the car without inconveniencing the driver. Each of the glasses's two LEDs provide 16 lumens and are angled inward, creating two efficient, overlapping cones of light, providing 4X the light of lesser models. Four CR1632 batteries that fit into the frame provide up to 50 hours of illumination. The optical quality frames are made of plastic; high-quality refractive lenses are available in three different strengths (+1.5, +2.0, +2.5). Not available for shipment to New York. Includes protective patent leather case with felt lining: 6 1/2" L x 2" W. (4 oz.)