The Mont-Mégantic International Dark Sky Reserve is a world leader in the use of nocturnal environment-respecting lighting technology.

While many cities across the world have converted their lighting to high luminosity white LEDs, resulting in greater repercussions of nocturnal light, the Preserve has fostered the development and installation of amber LEDs, for both street lighting and the high power lighting sometimes necessary for commercial and industrial use.

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While more and more low color temperature LED lighting has become available in recent times, most of the market remains in the 3000K to 5000K range. Even at 3000K, the level of power commonly used results in a high amount of light pollution.

Luckily, some lighting makers and retailers now offer the option de "Amber", "PC-Amber" and 2200K on various models of lighting apparatus.

It also needs to be said that, even if less frequently deployed nowadays, High Pressure Sodium lamps emit between 8% and 10% blue light and remain an acceptable choice.