A glass tube constricted along its middle portion to concentrate the discharge glow, provided with cylindrical metal electrodes connected to 4 mm plugs mounted in moulded plastic end caps.

We are manufacturers and suppliers of the Geissler Tube, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.