... , spectral lines clear, bright, high resolution. portable spectroscope, it is a small-sized instrument with 340mm total long, 2kg weight, especially ... (4) Objective: the focus F=150 mm,D/f=1:5(5) The eyepiece magnifacation: 15X(6) The stick electrode outside diameter ... , light weight.LK- 68A:Power voltage: 220VArc current: 3.9-5 ASize: 180*245*320mmWeight: 15kg portable spectroscope(host)