You simply connect the pins and you're done, since the relay is plug and play for everyday use.
LED Flasher Relay 12V 3 Pin – Adjustable Frequency for Motorcycles & Autos
A nice touch is the matte finish on this unbranded relay, which resists fingerprints and looks tidy on aYou will find that this unbranded relay is easy to source, and the price stays reasonable for small projects.
A nice touch is the heavy duty rating printed clearly, so you know it is ready for demanding circuits.
You will find that the unbranded design things basic, which makes troubleshooting quick and stress-free for most setups.