Cassette for speedglass 9002NC with a field of vision that is 45% bigger. A solar panel prolongs the life of the battery to approximately 3000 hours. Four adjustable sensitivity levels for each arc welding job. Intelligent conversion during stable TIG-welding with low welding current (1 amp). Three time settings for setting switching time from dark to light. Five dark colours 8-12. Dimensions: 55x107 mm.