Operating temperature: -20°C to +40°C. Enclosure: high impact polyamide (nylon). Lens: tempered glass 108 x 5 mm. Beam type: narrow or medium. Power source: rechargeable battery, Nickel Cadmium 6 V, 5.5 Ah. Operating time: 6 W - 5 h 20 min; 10 W - 3h; 20 W - 1h 20 min. Weight: 1.3 kg (with battery). Colour: orange and military green.