The output of the SP32A v2.0 was reduced to protect the life of the components.
Turbo (1300lm) steps down to High (500) after 3 min., and High down to Medium (160) after 3 hrs.
On the earlier version, Turbo (1550) lasted for 2 min., and High (900) for 3 min, before going down to Med (160), so it effectively has one fewer useful mode for sustained usage.