Barska 4x Magnifier with 5 LED Lights and 1 UV Light. The 5 LED lights are for clear viewing of all detail even in dark settings while the UV light allows for viewing of items such as watermarks security threads and holograms. The Barska LED/UV Magnifying Glass has a handle that is comfortable and won't strain your palms. The duration is up to thirty hours of continuous use. The power needed is simply two AAA batteries - nothing fancy and hard to find. The Barska 4x64mm LED Magnifying Glass is a lightweight and super easy way to magnify just about everything. Specifications for Barska 4x Magnifier with 5 LED Lights and 1 UV Light: Manufacturer: Barska Magnification: 4 x Color: Black Magnification Type: Fixed Features of Barska 4 x 64mm Illuminated LED Magnifier: 5 bright LED lights for easy viewing UV light to reveal currency markings Designed for a comfy hold Continuous Run Time 30 Hrs Runs on 2 x AAA batteries (not included Package Contents: Braska Illuminated LED Magnifying Glass BK-LM-BB11917 Barska BB11917: 4x Magnifier with 5 LED Lights and 1 UV Light