The municipio for BCS purchased 400 streetlights a good brand CREE. Weak 9 watt output. These were well made lamps. Connected them to the grid. CFE brought me a dozen to analyze faults. The glass lens was impossible to remove without breaking them. Result. Inside the lens on the driver circuit was "Input 95 volts - 130 volts". They were connecting the lamps to 254 VAC. Ooops...
I consider the country-wide changeover to LED stop lights to be one of the greatest safety improvements in my history of driving here. Even misaligned, the lamps are visible in daylight.
Trillion peso potential industry: Red light cameras. :)