Solar streetlight lights up only when people are around

Mauricio Clavero has designed a street lamp that is solar powered and only uses a third of its energy unless its built-in motion detectors sense someone walking by. The lamp is built using LEDs and can be placed in area with no access to electricity due to its attached solar panels.

It comes in two versions: urban and country side. The differences between the two? Well, you got us there, but there’s most likely a difference in performance since you don’t often see streetlights in the countryside.
This is great for money conservation, but it could be a bit weird to be the only person walking down a street at night and having each lamp you pass turn on fully. It’s an interesting idea, nonetheless.