A very useful clip-on reading light, featuring an extra wide light beam – ideal for lighting bigger areas including larger format books, plans and maps. Often used by music performers! Combined with a flexible, positionable neck and longer battery life, this is a very practical multipurpose book light! The Really Serious Book Light Range is a co-ordinated collection of reading lights designed to suit the needs of all kinds of book light users.3 AAA batteries for prolonged use (fitted)