The 4 AA 3 LED auto timer Push N Lite contains 3 super bright 5 mm (millimeter) LEDs allowing for greater visibility. With built-in Auto Timer, the light can stay on from 1 to 5 minutes. The LED light features a durable plastic construction design and an easy-to-use push-On and Off button switch. The flashlight is ideal for indoor or outdoor lighting. The 4 AA batteries are included.