✓ ADJUSTABLE BRIGHTNESS LEVELS: Two-level of lights settings, gentle and bright brightness, general illumination without dead angle. Adjust brightness level via a switch located on the side of the magnifier, it can protect your eyes in the dark. ✓ NON-TOXIC & DURABLE FINISHED: Ultra high definition Fresnel lens, clear without color difference, prevent eye swelling, dizziness. Crystal clear image quality with minimal distortion, perfect for seniors with aging eyes and low vision individuals. ✓ FULL-PAGE READING: Our full-page magnifier offers a larger reading area, allowing you to read the entire page, The folding leg make reading stand across a whole page easier without moving, reducing moving multiple times while reading. ✓ DUAL POWER BY DC AND BATTERY: This large vision magnifier can be interchangeably by AC or DC power. Two AAA batteries(not included) are built-in. If the built-in power supply is used, the external power supply should be pulled out. ✓ 3X MAGNIFICATION VISION, PVC PLASTIC MATERIAL: This magnifying glass is up to 3x magnification, provides clear and transparent image quality with minimal distortion. Perfect ideal for reading small prints, tiny hobby crafting materials, and small gadget parts.