jacklight vs searchlight

jacklight

noun
  • A spotlight or lamp mounted on a car. 

verb
  • To shine a jacklight or spotlight on an animal, usually a deer, to aid in hunting at night. 

searchlight

noun
  • The light from the above source. 

  • A light source that projects a bright beam of light in any direction, generally for military use. 

verb
  • To scan or sweep across like a searchlight. 

How often have the words jacklight and searchlight occurred in a corpus of books? (source: Google Ngram Viewer )