Abstract: A trouble light holder for mounting under a vertically positioned cabinet having a flat bottom surface, to provide illumination for the area extending out from under the cabinet. The trouble light holder may include a mounting base plate, a telescopic, horizontally rotatable cantilever arm mounted to the base plate, a holder for a trouble light on the end of the telescopic arm, the holder being able to swivel or rotate horizontally, and a spring-loaded clip for the holder being held by a detent member. Thus the trouble light holder may allow light from a trouble light to be shined toward particular areas or objects on or around a work bench, and shined in various directions and angles, and this without shining light directly into a handyman's eyes. When not in use, the device may easily and quickly contract into a minimized storage position.