Rule to flash a light

Is there a way to make a rule to flash a light?

I know I can turn it off/on/off/on but there is a pretty big delay between off/on which I would like to decrease so it’s more of a true flash.

@Terri, unfortunately I am not aware of a way to flash the light that fast in a rule since the network communication may take 100-200ms already.

Alrighty then. Thank you!