Strobe 12 volt
This circuit will give provide a Good Strobe Effect for a variety of Portable Uses. Nominal current draw is `up to about` 1 amp at 12 volts. Depending on value of capacitor on pin 2 of the 555 and the particular choke that is used.
L1 is a 125 Uhy choke, rated at 3.5 amps. It is possible to substitute other chokes, but they must be capable of at least a 1 amp rating. Inductance value isn't too critical. Anywhere between 100 and 500 Uhy. should work fine. Of the ones I tested, this o