I haven't heard of a retrofit flasher. If there is such a thing, that would eliminate the only benefit of the electronic flasher which is indicating when a bulb is burned out, although LEDS don't burn out, so that feature isn't needed. A much simpler way to overcome the issue is to add a resistor in parallel with each LED assembly. The electronic flashers work by sensing current flow. When a bulb is burned out, (or when they're replaced with LEDS that draw almost no current), the current flow goes down and the flasher flashes real fast to tell you. Adding a resistor results in increased current flow that will keep the flasher happy.
A typical 1956 or 3056 bulb draws about one amp of current. Using Ohm's Law, that means they have about 12 ohms of resistance. A 12 - 15 ohm resistor should do the job. It should be a 10 watt resistor, which is pretty big, but you could probably get by with a 5 watt since the bulb isn't lit up all the time. You could even experiment with a larger resistance value, say 20 ohms. If that works, the higher the value, the lower the power rating needs to be.
Please consider a to help us answer more questions.
Sunday, December 1st, 2013 AT 4:51 PM