Note:the helmet and the Lens maybe send with different package， please wait patience when you only received one package，thank you for your understand.<br /><br />Specification<br />Viewing Area: 9.2*4.2cm<br />Clear state Shade NO: DIN4<br />Dark State Shade NO: DIN9-DIN13 stepless adjustment<br />Response time:A) Clear to dark: around 1/10000S; B) Dark to Clear: 0.1S~0.8S<br />Power on/off: Fully Automatic<br />Power Supply: Solar cells.<br />Sensitivity Control: Adjustable<br />Operating Tep.: -10C~+65C<br />Storing Tep.: -20C~+70C<br />Grinding Setting mode: Yes<br />Fully Adjustable Head Gear: Yes<br />Material: PA/PP<br />Low-voltage alarm function: Yes<br /><br />Package include:<br />1 x Welding Helmet<br />1 x Adjustable Headband