Up to 45% of light pollution is
caused by residential lighting.
Be a good neighbor, shield your lights!

Parshield® -- the patented clip-on visor for outdoor PAR-38 floodlight and spotlight bulbs. The Parshield visor turns an ordinary flood light into neighbor friendly shielded lighting. With our light shields and proper aiming, you can eliminate light trespass and preserve the dark sky.

Instructions (PDF)
Product flyer (PDF)
Installation diagram
Packaging design

Buy Parshield® glare visors

Dealer & quantity inquiries

  What's a PAR bulb?
  Proper aiming
  Proper mounting
  Proper shielding
  Energy efficiency

Contact us at info@parshield.com or by mail:
Parshield® Company  97 Greenpoint Avenue, Suite 1R, Brooklyn, NY 11222

Press and customer comments

Links to light pollution-related organizations, manufacturers, and more.

United States Patent, #6,497,501. Issued: December 24, 2002. Parshield® is Trademarked: Serial #76381699. Registered, January 14, 2003.