Supposedly the Green hornet steals the fuses from the Garage's fuse box to make the garage dark. However in the scenes that follow it is obvious that overhead lights are still on.
The Crime Boss takes out what should be a good quality cigar and lights it. HOWEVER he never clips the end of it. Top quality cigars are not precut. Without a hole in the wrapper leaf you can not smoke a cigar as you cannot draw air through it.