Onh LED nursing Medical Reusable nurse penlight for Pupil Gauge stethoscope pupil gauge healthcare with nurses doctors Warm White Doctors and nurses are constantly going through patients rooms in the middle of the night while patients are sleeping. A nice respectful doctor or nurse would use a flashlight to get around instead of turning on the lights at 3am. A little bit of courtesy goes a long way with patients that are already having a bad day. Penlights are a good size for the medical professional since they are easy to fit in a pocket or have attached to a clip board. Bright LED illumination for keen visualization Takes one AAA replaceable battery, included This LED penlight is push button activated Metal construction Long-life and reusable,medical led penlight easy to use and affordable. Included replaceable AAA batteries, Penlight sise: 13.5cm (5.3")Length x 1.3cm(0.51")diameter, LED color: warm white and pen color: blue or purple.