Professional Diagnostic Penlight features a bold design inspired by Art Deco, the unique style that unified modern art and industrial purpose with geometric forms and streamlined shapes, making this luxurious lighting instrument a leader in its class. Of paramount importance to the LUMiNiX design is the precision handcrafted solid aircraft aluminum construction that characterizes the appearance and optimizes functionality. LUMiNiX is equipped with a variable focus beam and push end-cap button. Standard illumination. Requires 2 AAA batteries (not included).