DuraFlash LGS-M10 IRWL - LightGuard Systems

DuraFlash LGS-M10 IRWL

DuraFlash™ LGS-M10 IRWL is the next generation in-roadway warning light with a seamless, moisture-resistant design and ruggedized exterior that’s built to last. DuraFlash flashes at the highly visible Enlighten1 rate, which operates at 50% duty cycle and is photosensitive epilepsy safe.

LightGuard Systems DuraFlash LGS-M10 In-roadway warning light photo

DuraFlash is the next generation IRWL with a seamless, moisture-resistant design and ruggedized exterior


DuraFlash features:

  • Seamless, moisture-resistant design
  • Visible to motorists up to 1,000 feet
  • Ruggedized exterior that’s built to last
  • Superior resistance to roadway wear and tear
  • Enlighten1™ flash rate captures motorist attention
  • Solid-state electronics
  • Easily mounts to roadway base
  • Minimal maintenance required
  • Debris-Free Self Clearing, built into the base plate
  • Snap together waterproof electrical connections
  • Fits 10″ Composite and 14″ Steel Snow Plow Resistant Base Plates
  • Operates on solar and/or AC power
  • Amber, red and white LED color options

Nashville Airport, pedestrian warning systems in parking garage
LightGuard Systems IRWL and Flashing LED Warning Sign System at Nashville Airport, TN

IRWL Applications

IRWL is primarily used to alert motorists of: pedestrians inside, or about to enter a crosswalk using amber LEDs; a controlled STOP ahead using red LEDs; and as lane delineation markers using white LEDs. Typical environments for amber LEDs include: mid-block uncontrolled public crosswalks, school zones, trail crossings, and at facility entrances/exits, such as airports and hospitals. IRWL can be activated via push buttons, passive pedestrian detection bollards, and motion activated sensors. Once activated, the light fixtures flash, warning motorists up to 1,000 feet in advance.


DuraFlash LGS-M10 with 10” LGS-SD10-C composite base plate


IRWL Mounting

DuraFlash easily connects to the electrical cable system wires with snap- together water tight connectors. The interior of the light fixture unit is designed with double redundancy, isolating the solid state electronics and sealed LED modules from environmental moisture and corrosive intrusion.

DuraFlash LGS-M10 LED in-roadway warning light exploding view color
The IRWL is fastened to the base plate with stainless steel button head 1⁄4″-20 screws with thread locks and factory applied anti-seize compound to the screws.

Debris-Free Self Clearing

DuraFlash is designed to fit tightly into the protective base plate, which contains a Debris-Free Self Clearing built-in feature. As tires pass over the base plate, fluted air channels push air up and away — keeping the LED light fixture free from debris build-up.

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

14″ case hardened steel IRWL base plate

The slight elevation of the IRWL fixture 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.


SFO-Airport-ped-crossing-animated - LightGuard Systems
SFO Airport pedestrian crossing – LightGuard Systems

Enlighten1™ Flash Rate  — Photosensitive Epilepsy Safe

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

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. Enlighten1 is a public safety feature unique to LightGuard Systems’ flashing LED warning products.


IRWL Crosswalk Installation

When installing IRWL at crosswalks, each IRWL faces away from the crosswalk and points in the direction of oncoming motorists’ (NOT straight forward). The result is a slightly different, uniquely pointed angle for each individual IRWL.

In-roadway warning light 2 Lane Two-way with Center Turn Lane GRAPHIC
2-Lane, 2-Way in-roadway warning light Layout with Center Turn Lane

Prior to installation, the proposed IRWL site should be observed with particular attention to vehicle tire paths. As per Section 4N.05 & .06 of the MUTCD, IRWLs should be installed in the center of each traffic lane, at the center line of the roadway, at each edge of the roadway or parking lanes, or at other suitable locations away from the normal tire track paths. The location of the IRWLs within the lanes should be based on engineering judgement. For additional information, refer to our published IRWL layouts.


Warranty and Maintenance

LightGuard Systems offers a three year conditional warranty on its in-roadway warning light fixtures and 5 years on its base plates. Maintenance consists of removing 4 bolts and a plug to disconnect, and then lifting the fixture out of the base plate. Our IRWL fixtures are designed for 100% backwards compatibility with any older generation base plate models.

Visit our Product Warranty page for policy details, conditions and exclusions.

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