Double adjustable light source ,with Photospot cold light halogen lamp:12V/50W
Adjustable light well:2-28nm
Adjustable slit and Draw-tube focus
With optic fiber output
With wavelength scale(range from 400 to 700nm)
Adjustable intensity of tungsten-halogen illumination
Voltage adapts worldwide automatically

Imported high quality prism spectroscope

High temperature resistant fiber tube since the lock600mm

Inside the radiator.