The mirror adjusts in any direction and makes viewing in tight places possible. The bright LED reflects light off the mirror to shine where you need it. Detach the mirror and use as a standalone flashlight. A new threaded connection keeps light securely turned off when not in use. Read part numbers off the back of a unit, only inches from the wall. A must have for any technician who works in dark areas. The chrome finish makes it look almost as good as it works.