Engine bays and undercarriages are dark even in a bright shop. A trouble light provides hands-free illumination. Traditional models use a long power cord and a bulb inside a steel cage. Modern versions feature rechargeable LED strips with magnetic bases and swiveling hooks. LEDs are safer because they do not get hot. Old incandescent bulbs will shatter if splashed with cold water or oil, and they can burn your hands or melt plastic parts if left touching them.
Mechanic Glossary
Trouble Light
A portable work light, usually enclosed in a protective metal cage with a hanging hook, used to illuminate tight engine bays and undercarriages.
Frequently Asked Questions
LEDs generate almost no heat, are shock-resistant, use less power, and eliminate the risk of starting a fire if laid on greasy shop towels.
Lumens measure the brightness of the light. For automotive work under a lift, a light with 500 to 1000 lumens is ideal.
No. Magnets only stick to ferrous metals like steel or iron. Use the hanging hook on aluminum hoods or plastic trim.
Look for a light with an IP rating (like IP65) which indicates it is sealed against water, oil, and dust splashes.