Lifesystems Intensity 155 Head Torch is a versatile water-resistant head lamp that is powered from just one AA battery. This small yet powerful head torch features an adjustable beam angle (17m-62m) that can be used over a long distance. It has 7 lighting modes in all, including SOS flashing mode. The Intensity 155 Head Torch is equipped with a strong elasticated and fully-adjustable head band and is recommended by the Duke of Edinburgh Award Scheme. It comes with an AA battery with up to 35 hours battery life Lightweight head torch that runs off one AA battery (included) Up to 155 lumens brightness 17-62 metres adjustable beam CREE XPG3 S2 white LED & 2 x 5mm red LEDs Seven lighting modes including flashing SOS mode IPX6 water-resistant body Up to 35 hours battery life Weight: 72g Recommended by the Duke of Edinburgh Award Scheme