Trouble light

The light bulb is housed in a protective cage and a handle that are molded to form a single unit.

It has a long power line for distant reaching; the handle may also have an electrical outlet on it, allowing the light to also double as an extension cord.

This is to maximise electrical safety, especially in wet environments or where the cord may be damaged during use and otherwise pose a shock hazard.

[citation needed] Trouble lights are intended to be used with "rough service bulbs", a form of incandescent light bulbs which are designed with as many as five support wires holding the filament to allow it to withstand heavy vibrations or movement.

Compact fluorescent lamps and recently, light-emitting diodes may also be used in trouble lights.