A potent light with the appropriate infrared filter will make your night vision see much better in dark places. Note that a filter does not make infrared light, it merely removes the visible components from the light generated by the source and lets the infrared pass through in peace. Therefore, it is necessary to get a filter of the proper wavelength for the night vision device you are using. Any old infrared filter will not do. Do not buy a filter from a camera store unless you know what to ask for. Merely requesting an "infrared" filter may not be good enough. Best to buy the filter either from the manufacturer of your light, or of your night vision. An infrared filter blocks almost everything from passing other than infrared. This visible light does not just go off into never never land. It changes to heat. What I am trying to say is that a filtered light, especially a potent Collins CD12 or some such, will get very HOT when operating. Be sure the light has plenty of air circulation, and keep your fingers away from it. In general, if the filter gets hot enough to sizzle spit, it's too hot.
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