Incorporating a hinged swinging motion, reflectivity, and glowing light, FireFly Ultra bird diverters are a highly effective way to help protect birds in flight from collisions with overhead power lines, including locations where high sustained winds prevail (up to 100 mph).

Recommended by the U.S. Fish and Wildlife Service, patented FireFly bird diverters have been shown in independent studies to be the most effective bird diverters in preventing bird strikes on power lines.

FireFly Ultra Makes Hazards Visible to Birds

• Builds on the original FireFly bird diverter designed by an avian biologist and based on avian research.
• Heavy duty stainless steel hinge provides the extra benefit of motion while also enhancing reliability.
• Birds can see both visible and ultraviolet light, and FireFly Ultra is highly visible to birds in both parts of the spectrum.
• Brightly colored diamond bar material refracts sunlight and provides a “sparkle effect” visible to birds up to a quarter mile away.
• Luminescent material glows for up to 12 hours after dusk, and in low light or fog conditions, when birds are most vulnerable.
• High impact black polymer “flapper” has a rectangular area of 3.5" x 6" (overall height of diverter 10"), is 1/8" thick, and is rated for temperatures from –40 F to 160 F.

Fast and Simple Installation

• FireFly Ultra weighs 0.44 lbs and installs in seconds on live lines up to 115 kV by hand, hot stick, or drone. Also safe to use on OPGW lines.
• FireFly Ultra is easy to remove and install as bird activity changes with the season.
• Recommended spacing is 30 feet between FireFly diverters.
• Patented and rugged SnapFast mounting clamp prevents line slippage on single or bundled cables. Choose from two sizes:
  4–16 mm (0.16"–0.63") P/N KS07018
  10–70 mm (0.39"–2.75") P/N KS07019