Click for a larger picture. 12V Anti-Dew Gun Also known as a 12V Hair Dryer, it quickly clears dew from optics, including refractors, SCTs, and secondary mirrors.  In many cases, this is the only way to recover from being "dewed out". 156W, 13A.  Must be plugged into cigarette lighter socket or used with minimum 17AH battery.  Read directions before using, and use carefully. Shipping included in the continental United States. 12V Anti-Dew Gun part # price s&h add to cart 12V Anti-Dew Gun dewgun_1 $25.00 (included)