The strobe type MFLA3 is a small explosion protected Ex ia LED based self-flashing strobe designed for general alarm annunciation applications in hazardous areas such as underground coalmines. These applications include visual warning alarms, visual pre-start alarms, out of range process alarms and enunciators. The MFLA3 is completely encapsulated within the lens body providing improved ingress protection and impact resistance. The strobe is available in the five colours red, green, yellow, blue and white. This allows the user to select a colour best suited for the application. The MFLA3 is primarily designed for low power underground applications but may also find application in above ground installations due to the significant brightness of the strobe. The unit may be mounted on any free surface such as a sheet metal enclosure, using two M3 mounting studs. A gasket is supplied with the MFLA3 to provide IP66 ingress protection for the host enclosure. The strobe is easy to mount as it only requires three small holes, two for mounting and one for the leads, in the host enclosure. The MFLA3 is available in two supply voltage ranges, 4.0 to 7.88 volts for the MFLA3-06-xx and 8.0 to 12.6 volts for the MFLA3-12-xx. Both variants of the MFLA3 have very low current consumption at 15mA for the MFLA3-06-xx and 12mA for the MFLA3-12-xx.