Bussman 552 Flasher

Thermal Flashers

Uses heat build-up to
flash circuit on and off

Audible click alerts driver
that a directional signal
is engaged

Generally used in older
model vehicles

Operates correctly
under variable load

Flashes the designated
vehicle lamps only, or additional
lamps when a trailer is in tow

Does not indicate lamp outage

Must buy 10 or more for
wholesale prices