This welding helmet is best suited for TIG welding. Top marks in the evaluation of optical class, scattering class, homogeneity class and class of angular characteristics. Complete protection of face and front of neck against radiation and sparks is guaranteed. Effective protection of the eyes by automatic dimming after a very short reaction time as soon as the arc is ignited. Protection level infinitely variable on the outside of the helmet, helmet does not have to be removed. Both hands free for positioning torch and material. Solar cell operation. Tested for practicality by welding technicians. Due to the automatic on/off switch, no button needs to be pressed. In addition, the delay switch can be used to set the brightening time as required. The welding helmet provides complete neck protection. The special helmet shape protects the faceplate from scratches, for example when the helmet is taken off. A bead at the top and bottom of the helmet provides additional protection against sparks. For use in MIG/MAG, TIG and electrode welding and grinding. Not suitable for use in laser welding, oxygen and acetylene welding and cutting processes. The VarioProtect automatic welding filters are continuously adjustable. The built-in UV/IR filter blocks harmful radiation. Controlled by electronics, the liquid crystal elements act as apertures that detect the welding arc and react immediately by displaying a dark or bright image. In all VarioProtect models, the sensitivity can also be continuously adjusted and the switching reaction time from dark to light can be set in several stages. In addition, the automatic darkening of the welding filter can be deactivated via a selector switch. In grinding mode, the VarioProtect helmet can also be used for grinding. The comfortable headband of the VarioProtect series: maximum wearing comfort thanks to easily adjustable headband. Headband can be quickly changed via a click mechanism. The welding band is replaceable. Other features: Especially well suited for TIG welding, Stepless DIN 4-8 & DIN 9-13, Response time 0.3 ms, 4 sensors, Extra large field of view, Easy battery change, For electrodes, MIG/MAG and TIG welding.