John Anderson Posted May 27, 2013 Report Share Posted May 27, 2013 If you are using a flashlight as a light source for RTI, ensure the batteries not inserted upside down, or else this is what will happen..........! http://www.flickr.com/photos/29441362@N00/8852499803/sizes/o/in/photostream/ Link to comment Share on other sites More sharing options...
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