Portable Slit lamp is a lightweight, single-hand operated slit lamp. It functions as a desktop slit lamp but is ideal for pediatrics, seniors, nursing home, carry-out, or mobile hospitals. Microscope Part: Microscope Type: Converging Microscope at 13D Magnification: 10X, 16X by Flip Lever Design Working Distance: 100mm (10X) – 80mm (16X) Field of View: 11mm (16X), 14mm (10X) Adjustable Range of Pupil Distance: 50-74mm Adjustable Diopter: +/-7D Fixed Lamp: White LED Slit Lamp Part: Slit Width & Height (Fixed—Not Continuous/Adjustable): 0.15 X 12mm 0.50 X 12mm 0.80 X 12mm 1.60 X 12mm 12mm Circle 1mm Square (Flare Assessment) Slit Angle: +/- 60° Filters: Neutral Density 0.8, Clear, Green (Red Free), Cobalt Blue Illumination: LED Working Time: 6 Hours Charging Time: Approx. 2.5 Hours Power: Power Supply: Rechargeable Li-ion Battery 3.7V Input Voltage: AC220V - AC110V 50Hz – 60Hz