This is any "help" threads dream come true with all this bouning ideas around to find the best option.
OK, so after looking at everything, I think going back to the original design but substituting the ShoMe 11.1005STT as mentioned earlier is the best option. This flasher gives us the option to wire the lights directly into the turn signals without any need for relays, diodes, or crazy wiring schematics.
I did the math on the power ratings for THESE
lights that you found earlier. It does not show the wattage of each light, BUT we can assume that each individual LED does not exceed 1w each. That means that each light consumes no more than 10w total. 10watts @ 12 volts = 0.83 amps. So it is safe to assume that each light draws less than 1 amp in total. So our max power consumption will be 2 amps per side, and 4 amps total. This module limits us to 6 amps MAX and 3 amps per side. It calles for a 5 amp fuse so we will make it just fine.
My final recommendation would be to order the following:
-ShoMe Flasher 11.1005STT retails for $48.22 but can be found much cheaper online.
-Two sets of THESE
led lights you found on ebay
-A custom on/off switch of your liking from Otrattw
-A small single momentary push button switch.
-Misc wiring and installation supplies.