I need the REGEX of this code

[test_it]

Hello guys, hope you're all doing well.
I need the right REGEX for this serial key please and thanks.
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FEB54-557F6-B585D-DDBT9

[Ruri]

^[A-F0-9]{5}-[A-F0-9]{5}-[A-F0-9]{5}-[A-F0-9]{5}$

[test_it]

@Ruri Thank you and what shall I type in Separator and the other stuff?

[Ruri]

[WLTYPE]
Name=Serial
Regex=^[A-F0-9]{5}-[A-F0-9]{5}-[A-F0-9]{5}-[A-F0-9]{5}$
Verify=True
Separator=:
Slices=SERIAL

[test_it]

@Ruri Appreciate that, God bless you

[Greeno]

i have generate keys but if i start it it shows me only retries.
i have an failure key but dont work this is my wltype:
[WLTYPE]
Name=Custom
Regex=^[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}$
Verify=True
Separator=
Slices=SERIAL

why it dont work?

[percebal42]

try to add separator.

[Greeno]

what have i do ?
: ?
. ?
if i take " :" than the config dont start