... Biological Microscope 1.High quality and cost effective 2.Sliding type,with a ease of operation 3.Abbe condenser Introduction & Specification ... , bacteriology, histology and pharmaceutical chemistry, etc, also used for clinic test in medical treatment and teaching in school lab,etc. Plan ... tungsten bulb: 6V/20VA 2 unit(1 for spare) Sliding Type Binocular Biological Microscope More Easy Operation