Carson Lume Series 2x Aspheric COB LED Magnifier w/7x Spot Lens 4.5 in. Aspheric lens magnifiers allow for increased magnification and image clarity while greatly reducing edge to edge distortion. It has a 4.5in diameter Acrylic Lens and boasts 3 Ultra bright COB LEDs with diffusive cover lenses. COB LEDs are brighter than traditional LEDs provide a greater uniformity of lights and consume less power. The AS-95 also features a multi position switch with 2 brightness settings and uses 2 AAA batteries (batteries not included). Ideal for reading fine print or in low light environments hobbies & crafts or everyday needs. Specifications for Carson Lume Series 2x Aspheric COB LED Magnifier w/7x Spot Lens: Manufacturer: Carson Magnification: 2 - 7 x Lens Diameter: 4.5 in Bulb Type: LED Dimensions: 5.4 x 1.0 x 10.1 in Magnification Type: Variable Battery Quantity: 2 Battery Type: AAA Features of Carson Lume Series 2x Aspheric COB LED Magnifier w/7x Spot Lens 2x Aspheric COB LED Magnifier with 7x Spot Lens 4.5 diameter Acrylic Lens 3 Ultra bright COB LEDs with diffusive cover Package Contents: Carson Lume Series 2x Aspheric COB LED Magnifier w/7x Spot Lens Carson AS-95: Lume Series 2x Aspheric COB LED Magnifier w/7x Spot Lens 4.5 in