Weighing in at a tiny 26g this Petzl e+Lite Headlamp is an ultra-compact lightweight and waterproof emergency headlamp that can be stored with its batteries for up to 10 years in its own carry case making it perfect for keeping in your backpack vehicle or emergency kit ready for when you need it most This Petzl head torch has a 50 lumens white light that has a 10m distance wide beam at max power ideal for lighting your way In addition it has a red light too for preserving night vision Both of these lights have a strobe function that are visible at 100m for over 70 hours This along with the integrated whistle on the head band provide you with incredibly effective ways to signal if you find yourself in an emergency situation The Petzl e+lite is powered by two small and lightweight CR2032 batteries which minimise the weight of the head torch and mean that you can have a couple of spares packed too We think the best feature is the way that you can leave this incredibly lightweight emergency head torch with its batteries in and leave in the bottom of your bag or in your vehicle - so it is there and ready to use when you need it most