MAG-1502RED 3x Magna-lite Red bulb pocket magnifier a replaceable red wavelength hi-intensity bulb to help preserve night vision. Makes a ideal portable pocket magnifier for first, sailers, pilots, truck drivers, first responders, military crews, anyone who might need to look at a map, and wishes to preserve their night vision.Has a replaceable red bulb that will also accept a conventional bulb. Uses two "AAA" batteries included. Made In The USA