turn signals, tail lights, and wiring questions!?

[LiveToRide95]

So if there is one things I know absolutely nothing about it is wirings. I am lookng at replacing the rear turn signals and brake light into somthing much smaller and sleeker. How how would that be to replace those with somthing like this?
http://www.ebay.com/itm/261446539846?_t ... MEBIDX%3AI
or this
http://www.ebay.com/itm/271449438336?_t ... EBIDX%3AIT

My bike is no where near stock and I'm looking for a cafe racer style turn signals.

[Folsoml]

You will not be able to simply swap out the original signals for LEDs without also changing out the relay. You will need an electronic relay, as the LEDs do not draw enough power to trip the OEM relay.

[MEHall]

You have to remember that orginal turn signal bulbs is at least 21 w each and a LED signal is around 1 w each, the math is easy to do if you use the original relay with LED signals. Either you mount resistors that match the rest ot the wattage or mount a load independance relay.

[cb650]

or use electric not mechanical relay.

[MEHall]

Exactly what i meant.