... :12 x145 mm 4.Metal pen sparking ballpoint led pen Led pen is perfect for Field Day operator,pilots, ... the dark,and see what you’re writing.The LED is lens-focused to give you plenty of ... light where you need it without disturbing others.The LED pen includes batteries.Replacement batteries and pen refill ... Blue,Green,Yellow,Purple,Pink and WhiteThe color of LED and surface of tube ould be chosen by ...