Beta
OK, I get it now. So, a "Line up and wait" instruction = strobes only?
STP
It depends on the company. My previous company turned the landing lights on with the take off clearance. My current company turns the landing lights on prior to crossing the take off runway holding point (whether cleared for take off or just cleared to line up only).
You would think after this many years of jet aviation operations we would have standardised things by now. Unfortunately, as a global industry, we're not even close.
PG