The X-LITE is a proprietary guardrail system developed by Lindsay.
From the manufacturer's website:
The X-Lite system is a redirective, gating end terminal in accordance with the definitions in the National Cooperative Highway Research Program Report 350 (NCHRP Report 350). The system has been tested in tangent and flared configurations and performs in an acceptable manner in accordance with the guidelines of NCHRP Report 350 at Test Level 3 (100 km/h). The X-Lite system is designed to absorb or re-direct the impact energy of an errant vehicle in accordance with NCHRP Report 350 guidelines for redirective, gating terminals and crash cushions. The system is designed to attach to the ends of guardrail systems.