Blinking device

A blinking device is provided with a plurality of power-supply terminals, a plurality of load terminals, a plurality of contact switches, a control circuit, a plurality of mounting substrates, and a box-shaped case for accommodating all of these internally. The plurality of contact switches is provided in a one-to-one correspondence with a plurality of feed lines, each of which is connected separately to a plurality of sets, one set being formed of one power-supply terminal among the plurality of power-supply terminals and one load terminal among the plurality of load terminals. Each of the plurality of mounting substrates has at least one feed line among the plurality of feed lines formed on the front surface on which a contact switch is mounted and/or the back surface on which no contact switch is mounted. The case is configured so as to accommodate the plurality of mounting substrates stacked in the thickness direction.