Call Trucklite. They will surely warranty that if they want to keep the small community of this style headlights around.The low beam on one of my new Truck-Lites (via the ~$330 ebay deal) lost intensity after a few hours of use. Hi beam continues to work fine. Given the low current draw, I don't see this being a wiring or grounding issue. So instead of seeing their classic (or annoying) dual X pattern, I'm running a solo. Will short out the issue and test the warranty if it comes to that.