The portable slit lamp projects a beam of light to the patients’ eye, which forms an optical section of the living tissue of the eyes. Instrument can be used to observe the disease of the anterior structures and tissue damage of the eyes in medical institution. 

Specifications: 
Total magnification ratio: 5x 
Length of slit: 5-11mm 
Minimum width of slit: 0.2mm 
Working distance: 12-32mm 
Light source: LED (3V/1W - 2,000 hours of working life) 
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Model: HR-20.SL2