Auxiliary Rechargeable LED Lights. Dual LED lights with 2 brightness levels give you amber illumination in dark conditions. The lights of the magnifying glasses for close work can be turned on/off independently, offering flexibility for different tasks. Detachable & Adjustable. yours! You can adjust the lens angle lens angle (150° range), light position (50° tilt), and distance between two lens barrels (2.24"-2.75"). Single Eye Observation for Vision- Designed for close-up tasks ( length range from 0.85" to 9.84"), this hands-free magnifying glass with light works best with SINGLE-EYE USE to prevent blurring. Alternating between the two lens barrels helps reduce eye strain and enhances work efficiency. 5 Lens . Comes with 5 crystall-clear acrylic lens pairs (2X, 4X, 6X, 10X, 13X) that combine up to 23X magnification. The quick-swap system lets you change lenses quickly when you need more power to see something small. Multifunctional Magnifying Glass. Ideal headband magnifier for watch rapair. Trusted by jewelers, electricians, watchmakers, scale modeler, and hobbyists. Also suitable for micro-soldering, circuit board repairs, gem cutting, model building, coin collection.