Hey everyone, I just wanted to share my experience with Athearn. My lights on my GP60m's failed, these locos were only 6-7 months old. I wrote Athearn, they had me do some 1.5v tests, bulbs still did not work. They sent four new ones right away. I put them in and they work better than the stock. It took a total of 7 days with shipping, I did not pay one cent. I have been in customer service for 17 years (burning out) and I have to say they did an excellent job!