the MAGLITE Solitaire Flashlight be a older design that for many flashlight enthusiast be no longer relevant in a world of multifunctional led , high output lumen of light . while the Solitaire be not the latest or greatest flashlight I believe that it be still useful under the right circumstance . for I , I use this light as part of a first aid kit within my  Maxpedition janus Extension Strap Pocket KHAKI FOLIAGE  the light be connect to a paracord lanyard that I make and fit perfectly in the bottom of the janus in a little pocket . the reason I like this flashlight be specifically because it be not too bright yet provide enough light to see all the contents of my first aid kit when in a low light situation . also , I can use this light safely to check pupillary reaction time . some of the new lead high power flashlight provide too much light . the Solitaire be small , lightweight , and durable . I have never experience a situation where the light twist on or off by itself . it take one aaa battery and I always carry a minimum of one spare battery . bulb life and battery life have never be a issue . you can twist the top of the light to adjust the light from a focused beam to flood but the flood setting be very weak and provide a ring effect . there be a time when mag light be the best you can buy but that day be long go . now there be many company make very high quality , very durable flashlight with multiple setting and function . you can also spend literally hundred of dollar on just one high quality flashlight . if you be in a situation where you do not need the brightest light then do not discount the Solitaire as it may very well suit you need at a very low price .