Carson Lume Series 2.5x Aspheric COB LED Magnifier w/7x Spot Lens 3.5 in. 5x Aspheric COB LED Magnifier with 7x Spot Lens. Aspheric lens magnifiers allow for increased magnification and image clarity while greatly reducing edge to edge distortion. It has a 3.5" 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 2.5x Aspheric COB LED Magnifier w/7x Spot Lens: Manufacturer: Carson Magnification: 2.5 x Condition: New Bulb Type: LED Magnification Type: Fixed Package Contents: Carson Lume Series 2.5x Aspheric COB LED Magnifier w/7x Spot Lens Carson AS-90: Lume Series 2.5x Aspheric COB LED Magnifier w/7x Spot Lens 3.5 in