Output: 200 lumens. Advanced focus system, spot to flood beam. One-handed speed focus. Aircraft grade aluminium casing. Cycle switch system, touch for maximum, high and low light. Rear tail cap switch. Burn time: up to 264 hours. Dimensions: 206 x 47 mm. Weight: 384 gms. Effective range: 0 - 961 feet. Power supply: 4 x AA alkaline batteries included.