Magnification : 10X 25X Double Magnifying Glass, 110mm with ABS PMMA Lens . LED : Magnifier with 29 LED white lights, power by USB charging ,charging 4 hours , working 26 hours. 3 model light from Light weak to strong . Handheld Magnifying in Charging : magnifier led when the red light is on ...it is displayed in charging. when the green light is on , it shows that charging is complete. How to touch handheld magnifier with control to adjust LED lamp function: when the touch switch is pressed for the first time--weak light , the second time --strong light, and the third time--stronger light. The function with magnifying glass : for reading newspapers, documents, maps, coins, stamps or electronic parts ect