The procedure varies by company.
Some switch off the landing lights at 10,000 ft, others at a higher altitude.
The very best of luck with your future flying.
I've been at it for over forty years...and still going.
If you have more questions, ask away, or send a PM if you prefer.
Of course, I can't answer about newer types, I've been in the 'ole L1011 for a very long time...28 years to be exact.
Ah....Lockheed.
Superb.
