LITHIUM BATTERY & SOLAR POWERED - Lithium battery powered blower unit gives the user a cooling stream of air to their head and face for up to 8 hours. Solar power panel supply for welding helmet. FULLY ADJUSTABLE - Adjustable airflow settings of 150, 180 and 210L/min. Welding helmet has adjustable shade control from 9-13. Additional shades 5-8 for gas welding and cutting. Adjustable headband for added comfort. SENSITIVITY & DELAY CONTROLS - Helmet features sensitivity and delay controls for switching light to dark. Fully automatic switching from light to dark on striking arc. REDUCES & REMOVES DUST - Designed to reduce or remove dust and particles but not vapours and gases. COMPLIANT WITH BS & DIN STANDARDS - Welding helmet complies with BS EN 379, BS EN 175, EN12941 and DIN standards. ONE YEAR GUARANTEE FROM A REPUTABLE UK COMPANY – Founded in 1978, Sealey is a large family run business with a vast product range. Trusted by professionals, all Sealey products are thoroughly tested and backed by unrivalled aftersales service., Weight: 7.71617917 Pounds, Manufacturer: Sealey