1960 house I'm working on has 20A breaker and 12 AWG terminating at a GFCI receptacle in a box in the garage. The breaker is dedicated to the garage. On the GFCI load side 12 AWG goes to the outlets and 14 AWG goes to two LED sensor lights. The 14 gauge is more than 10 feet.
Is the GFCI outlet sufficient here or should I change out the breaker to 15A?