A handy little clip-on reading light small and lightweight enough to slip inside your bag or pocket. Carry on reading anywhere even when the sun goes down. Perfectly practical for travel of any description..whether on an exotic adventure relaxing holiday or simply on the commute home. And it takes a standard AAA battery - easy to find and change wherever you are! The Really Serious Booklight Range is a co-ordinated collection of reading lights designed to suit the needs of all kinds of booklight users...whether night-time readers anywhere readers music performers hobbyists or DIYers. A great gift or a practical self purchase for anyone who enjoys reading long after the lights go out. Merchandised as a range the three models offer a comprehensive retail program and sell brilliantly alongside books. Carry on reading when the lights go out!