9X LED LightStar™ IRWL Signal Head

9X LED LightStar™ IRWL Signal Head

LightGuard Systems LGS GS-9X Signal Head Product Spec

Our 9X LED LightStar™ IRWL light fixture with patented “Dove Prism” lens technology meets Federal Highway Administration Manual on Uniform Traffic Control Devices (FHWA MUTCD) requirements for in-roadway warning light (IRWL) enhanced crosswalk systems.

LightGuard's 9X In-Pavement Signal LED Head Module

9X LED Signal Head w/Composite Base Plate Pic

9X LED LightStar™ IRWL features:


The IRWL signal head is designed to fit tightly inside the protective base plate. It is easily connected to the electrical cable system wires with snap together, water tight connectors. The interior of the signal head unit is designed with double redundancy, isolating the solid state LED modules from roadway moisture and corrosive intrusion. The IRWL signal head unit is fastened to the base plate with stainless steel socket head 1/4″-20 screws with thread locks and anti-seize compound applied to the threads in the factory.

Our Debris Free™ Self Clearing design is built into our base plates and features fluted air channels. As tires pass over the base plate, the fluted air channels push air up and away — keeping the LED signal head free from debris build up.

14″ Steel Snow Plow Blade Resistant Base Plate ~ with Fluted Air Channels Feature Details

The slight elevation of the IRWL signal head positioned above the road grade is further intended to help alleviate any blockage by debris.  Its shallow 1 1/2″ depth ensures that the subsurface roadbed is not compromised.

A typical Smart Crosswalk™ system uses several 9X in-roadway warning light signal heads on both sides of the crosswalk. The IRWL signal heads are placed in the center of the traffic lanes so that vehicle tires straddle the in-roadway lights rather than driving directly over them. They are also placed at the edges of the road, spanning the entire crosswalk from edge to edge. The IRWL signal head lights flash at our proprietary Enlighten1™ flash rate which operates at a 50% duty cycle and is photosensitive epilepsy safe.

The 9X LED flashing light beams are visible in daylight from 200 to 600 feet and at night time at a distance of over 1000 feet.

Enlighten1™ Flash Rate  — It’s Photosensitive Epilepsy Safe

Our proprietary Enlighten1™ flash rate reaches a primitive part of the brain that elicits a response to danger. Developed in conjunction with the University of California, Berkeley Vision Detection Laboratory, the Enlighten1™ flash rate was designed to catch the motorists’ attention without creating any unwanted negative affects that flashing lights might have on photosensitive epilepsy. It is a public safety feature unique to our product.

According to the Epilepsy Foundation of America, exposure to flashing lights at certain intensities or to certain visual patterns can trigger seizures in 3 percent of people with epilepsy. This condition is known as photosensitive epilepsy.

Warranty and Maintenance

LightGuard Systems® Inc offers a three year conditional warranty on all its in-roadway warning light signal head modules. The LightStar™ 9X signal head system can operate on either solar and/or AC power supplies. Maintenance on the signal head only requires the removal of 4 bolts, a plug to disconnect, and is lifted out of the base plate. Each generation of signal head module is designed to retro-fit into older system base plates.