you can light ten in series and ten of those in parallel, now this is the compromise, one fails only ten go out but its not as expensive as all in parallel
That's the approach they use in those led-based traffic lights.
you can light ten in series and ten of those in parallel, now this is the compromise, one fails only ten go out but its not as expensive as all in parallel
That's the approach they use in those led-based traffic lights.