Weems & Plath Marine Navigation Light Pen

The LED Light Pen is a unique pen has a small green LED tucked into its tip right next to a high quality medium ball point. Just give the top of the LED light pen a twist and you can see what you are entering in the log on those long dark nights without having to light up the whole cabin. The LED Light Pen runs for hours using 2 LR44 1.5 volt batteries which are located in the top.