Product material: ABS frame, glass lens Product magnification: 8 times Product size: 240X120X25mm Product diameter: 90mm Product light source: 21 LED lights, 3 kinds of color temperature adjustment Power supply method: USB charging, 1200mA rechargeable lithium battery Charging information: blue light for charging, red light for easy charging Electric Unique Design and Energy Saving and Environmental Protection: This 15x magnifying glass with light is ergonomically designed, comfortable to hold, easy to use, lightweight, easy to carry, light weight, Easy to use: No buttons, sensitive touch sensor can easily switch between 3 light modes. This magnifier is rechargeable, you dont need to buy unfriendly AAA batteries 3 Lighting Modes: These energy-saving magnifiers have a total of 21 lights with three lighting modes (white light, warm light), warm white light ), warm light (7 lights), white light (14 lights), warm white light (21 lights), provide good lighting even in low light conditions, more convenient to use. You can switch the lighting mode according to your needs, better protect your eyes, especially for macular degeneration, hyperopia or amblyopia.