The Grand, Tower 5 of 25

Tower 5 of 25 · The Grand · Main Street · standard wiring
switches 10 · par 4 ★☆☆
Turn on the Lights! You used 10 switches; par is 4. A tidier answer is hiding in there.

This tower can be lit in 16 different ways; the best of them take 4 switches.

This picture as a command file · How it works

One snapshot per switch, in the original viewer.