Deluxe contoured shade 11 welding helmet suitable for MIG, TIG and arc welding. Features automatic switching from light to dark on striking arc and adjustable sensitivity and delay controls for switching light to dark. Fitted with solar panel power supply so no batteries required. Fully adjustable headband featuring front pad for added comfort. Complies to BS EN 379, BS EN 175 and DIN standards. Shade Active: 11 Shade Inactive: 3 Grinding Function: No Viewing Area: 92 x 41mm Operating Time Light/Dark: 0.3ms Operating Temperature: -10°C to +60°C Power: Solar Cells Weight: 495g