With the Rechargeable Cree XP-E 3W Headlamp you will be able to see exactly what you're doing even in low light situations. It weighs only 65 grams, so you will hardly know it's there. It is rechargeable via a micro USB cable. An indicator will change from red to green when it's fully charged. It has three modes: high, low and flashing. The straps is adjustable, so it will fit perfectly.