LED Amber Warning Flashing Beacon Magnetic Base EMC 12-24V 24W

Double Flash Function, 140x140mm Height x Width, EMC Compatible, Supplied with 12V plug, can also be bolted. 

What is EMC?

ElectroMagnetic Compatibility (EMC) is a characteristic of electrical equipment such as lighting that permits it to operate as intended in the presence of other electrical and electronic equipment, and not to adversely interfere with that other equipment. In simple terms this light unit will not interfere with SatNav systems or digital radios.