Features Strong materials and fire retardant can prevent resistance anti aging Definition protective filter you can see the welding conditions clearly when weling the goods Welding luminosity is soft and comfortable It works the moment you start work this products adopts advanced circuit design Striking the arc the observing window darkens immediately Permanent UV IR protection Fashion appearance Ultra light designing wearing comfortable High performance solar cells and lithium battery Sensitivity and delay time can be adjustable Grinding and weling mode can be chosen Specification Viewing Area 100x59mmClear state Shade NO DIN4Dark State Shade NO DIN9 DIN13 stepless adjustmentPower Supply Lithium battery Solar supplyOperating Tep 20℃ 65℃Material PA PP Package includes 1 x Welding Helmet1 x Adjustable Headband Details pictures