Product Description Architectural Spotlight - Universal Type - Magnifying Lens with Light-Colored LED Light. Highlights: Universal type, magnifying lens with light-colored LED light. Magnifying glass with illumination head, surgical magnifying glass light. Product will be shipped according to the color or size shown in the main image on the product page. Features: 100% brand new, high quality, 5 interchangeable lenses, different magnifications marked in the center of the lens. LED illumination light can rotate approximately 60 degrees, the light source box with battery compartment is removable. Adjustable headband ensures comfortable and secure wear. The light source box can be used independently as a light source after removal. Widely used in machining, electronics repair, jewelry appraisal, watch repair, and micro-carving. Features: Single lens magnification: 1.0x, 1.5x, 2.0x, 2.5x, 3.5x; Double lens magnification: 3.0x, 4.0x, 4.5x, 5.0x, 5.5x, 6.0x. Magnification is marked in the center of the lens. The table below shows the ratio of different magnifications to the distance of the observed object: Magnification | Observed Object Distance 1.0 x 300 ~ 350 mm | 1.5 x 240 ~ 260 mm | 2.0 x 215 ~ 235 mm | 2.5 x 205 ~ 225 mm | 3.0 x 160 ~ 180 mm | 3.5 x 135 ~ 145 mm | 4.0 x 125 ~ 135 mm | 4.5 x 110 ~ 130 mm | 5.0 x 100 ~ 120 mm | 5.5 x 80 ~ 95 mm | 6.0 x 60 ~ 85 mm | LED: 2 | Lenses: 5 | Batteries: 3 x 1.5V AAA batteries (not included) | Head: Adjustable | Shell: High-quality PC | Helmet Material: Environmentally friendly acrylic | Applications: Watch repair, jewelry appraisal, micro-carving, etc. | Colors: White; Black | Size: Approx. 25.5 x 20.5 mm 10.03 x 8.07 inches (cm) Package includes: 1 head-mounted illumination magnifying glass with LED light, 5 lenses (with plastic case)