You need to pay attention to the fixture wiring and the socket you are screwing it into, in addition to the adapter rating.
You do not want to run a heavy demolition hammer on a fixture that is connected with #18 wire.
The run of Xmas lights is probably OK, particularly if LED. Is the adapter weather proof ?
The other precaution, two prong devices only. It is not OK to use the fixture adapter and a 2-3 prong adapter to plug in a device with a 3prong plug. You do not have a ground connection.
If the use is going to be regular (even Xmas lights) put in a proper receptacle.
You do not want to run a heavy demolition hammer on a fixture that is connected with #18 wire.
The run of Xmas lights is probably OK, particularly if LED. Is the adapter weather proof ?
The other precaution, two prong devices only. It is not OK to use the fixture adapter and a 2-3 prong adapter to plug in a device with a 3prong plug. You do not have a ground connection.
If the use is going to be regular (even Xmas lights) put in a proper receptacle.