This amazing magnifier has a built-in light with 3 LEDs mounted above the lens holder that swivel up, down and side to side to direct the beam of light exactly where you want it. The headband is easy to adjust and can be worn over your glasses. A storage case contains four snap-in lenses: 1.2x, 1.8x, 2.5x and 3.5x which can be combined for even more magnification for sensitive projects. The light has a dimmer switch and is powered by 2 AAA batteries, included. Instruction booklet included.