Patent ID: 8786460

Claim:
A magnetically controlled warning lamp comprising: a body having: a base having: a substrate having a top surface; and a circular wall protruding from the top surface of the substrate and having: an outer surface; and an outer thread formed on the outer surface; and a cover having an expansion terminal with an inner thread securely screwed on the outer thread of the circular wall, wherein a space is defined between the base and the cover when the cover is attached to the base; a light module mounted in the space of the body and having at least one LED; and a circuit board mounted in the space of the body and having: a magnetic device generating a trigger signal in response to a magnetic field; a control module providing multiple operation modes and electrically connected to the light module and the magnetic device to activate the light module to be operated in one of the operation modes based on the trigger signal; and a power module electrically connected to the control module and the light module to provide a working voltage.