Operating temperature: -20°C to +40°C. Apparatus standards: EN 50014, EN 50016. Enclosure: high impact antistatic PP. Lens: tempered glass 56 x 3 mm. Beam type: spot. Power source: rechargeable battery, 6V NiMH 1350 mAh, integrated on the headband. Light duration: 2.4 W: 3 h 10 min; 4 W: 1h 20 min. Weight: 512 g (with battery). Colour: black.