• Reflector diameter 86mm.• High performance bi-convex Beamaster lens.• Waterproof.• Micro-switch operation.• Convenient shoulder strap.• Operates using one 6v lantern battery.• Operates using UK 996 6v dry cell lantern battery.• Also operates using UK251 rechargeable battery, or UK300 plug-in rechargeable battery.• 4.8v Krypton bulb.• Batteries not included.