A nice touch is how the unbranded brand uses a bright indicator LED, so you know at a glance when it's active.
EP27 FL27 Electronic Flasher Relay – 12V Plug-in for LED Turn Signal Upgrade
You will find that this unbranded relay pairs well with generic controllers, without any branding conflicts or odd fit issues.
What stands out about the unbranded brand is the straightforward labeling on the coil and contacts for easy identification.