This is a unit designed specifically for outdoor use, therefore it is waterproof and designed to operate -17F to 100F (-28 to +38 degrees Celsius).
It is safe to assume that this unit will operate in most yards or homes. If you like in Alaska or Siberia, please contact us for a customized solution
For more info check out our Ultimate Guide to Laser Xmas Lights – http://laserchristmaslightshq.com/ultimate-guide-christmas-laser-lights/
Or our Holiday Projector Guide explaining the five highest quality and most affordable projectors on the market – http://laserchristmaslightshq.com/best-laser-light-projectors/