![When do the street lights turn on](https://cdn2.cdnme.se/5447227/9-3/16_64e61dfc9606ee7f98e9879e.png)
![when do the street lights turn on when do the street lights turn on](https://www.expressandstar.com/resizer/e8stsCwno7kkT3z88yA68A6UubY=/1200x0/cloudfront-us-east-1.images.arcpublishing.com/mna/MXZGX2X4KBAXVI6QOJHPFNONN4.jpg)
Like most other cities, Vancouver has spent the past few years switching from old sodium-vapor streetlights to LEDs. And after all the hue and cry, Vancouver rolled out the utility trucks and set out to replace the chromatic aberrations - even though the lights were still pretty new. So people placed worried calls to the city.
![when do the street lights turn on when do the street lights turn on](http://circuit-diagramz.com/wp-content/uploads/2016/05/auto-intensity-control-of-street-lights-circuit-diagram1.jpg)
The spectrum of Vancouver had taken a hard left turn. But purple doesn't exactly illuminate a sidewalk the way white does.
![when do the street lights turn on when do the street lights turn on](https://images.enteromedics.com/how-does-an-ambulance-turn-on-street-lights-.jpg)
They weren't any less bright, objectively speaking. What had been moonshine white was now blue, or purple, or even violet. A bunch of streetlights - a few hundred out of thousands - had suddenly changed. The sky over the city of Vancouver was the color of a television tuned to a Prince concert. Account icon An icon in the shape of a person's head and shoulders.
![When do the street lights turn on](https://cdn2.cdnme.se/5447227/9-3/16_64e61dfc9606ee7f98e9879e.png)