Flasher Application Guide

Thermal, Electro-Mechanical & Electronic

Flashers have come a long way since the early 2 or 3 pin tin can and Narva has a complete range manufactured to meet or exceed international standards. Starting with the low cost thermal units used for older vehicles and auxiliary applications, through to the latest electronic flashers with ‘no load’ circuitry for use with L.E.D lamps.

There are three basic flasher types: Thermal, Electro-Mechanical and Solid State Electronic. The introduction of both Electro-Mechanical flashers and Electronic Flashers has produced a higher level of reliability, a clearer audible sound and a more consistent flash rate under load and temperature variations. Electronic Flashers were introduced in accordance with the function of “outage” or globe failure as required by the Australian Design Rule, ADR 13. Early electronic units are load sensitive, although new units are now available with minimal to no load requirement for use with L.E.D lamps. The range incorporates features such as pilot lamp indication, hazard warning and heavy duty 5, 6 and 7 pin units for B-Double and Road Train applications.

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