White output is less than my keychain LED, and red, green, and blue filters are of course much dimmer. Well-constructed body. Nice feel to one-handed twist to turn on. Reference flats on the bottom of the main body and on the side of the red filter so you can select the color you want by touch in the dark before turning it on. Unless you need to switch between colors, I'd suggest a Fenix PD20, which is smaller, lighter, and gives you the options of very low output (min setting is still brighter than the Gerber) as well as tremendously bright output, and settings in between. Also, the central spot of the beam from the Fenix is more consistent brightness all the way across and a purer white. The Gerber's beam drops off in intensity very quickly, and has a yellowish ring in the outer regions (about 1/3 of the radius). If you really need low output and a colored beam, get a Fenix and a colored filter - you'll still be better off. The red filter on the Gerber is rather orange, about the color of the instrument backlighting on BMWs, as opposed to a purer red on Audi instruments. Since the white beam in the Gerber changes to yellow around the edges, the color varies slightly in the outer 1/3 of the central beam diameter when you use the filters - this is especially prominent with the blue filter, in which there is a greenish ring around the central blue spot. Get more detail about Gerber 22-80016 Recon White, Red, Blue, and Green LED Flashlight, Black.
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