Help, Deamber side markers

[tony_fury]

Ok, I found out some interesting info on the EFL-3 LED flasher..
It flashes just fine provided the LED it's powering has an integrated resistor.
I tried it with a 12V LED string without an integrated resistor and the LED's are dimly lit and notice a slight flash, but not bright enough to illuminate the LED's brightly.
It's almost like the integrate circuit within the relay must sense a certain resistance load before it will fully engage.
My guess without reverse engineering the relay components it has a current sense circuit in it.

The next variable is calculating the amount of resistance needed without drawing the current down too low towards the LED..

There has to be another 12V LED Flasher module that doesn't require resistance.
Reading the LED's without the integrated resistor read infinity, like an open circuit.

T