ADJUSTABLE SHADE CONTROL - Benefit from precise visual clarity and optimal protection as you weld, thanks to the seamlessly adjustable shade control ranging between 9-13. Shade control allows suitability for MIG, TIG, arc and gas welding. Also features sensitivity and delay controls for switching light to dark ADJUSTABLE SENSITIVITY & DELAY - Helmet has built-in sensitivity and delay switches to adjust to your needs. FULLY AUTOMATIC - Fully automatic switching from light to dark on striking arc. Eyes remain firmly protected with an instant operating time between light & dark standing at 0.3ms. Shade is selected by a rotary knob on side of helmet. SOLAR PANELLED POWER SUPPLY – Welding helmet has a solar panelled power supply to help it last longer. Rechargeable lithium batteries also supplied. COMPLIANT WITH BS & DIN STANDARDS – Helmet complies with BS EN 379, BS EN 175 and DIN standards., Weight: 1.1684499886 pounds, Manufacturer: Sealey