I just thought I'd give a thumbs-up to Surefire customer service. My M4gery was sitting on the arm of the couch, and got bumped off. When I picked it up, the Surefire M951XM07 wasn't working. A quick call to Surefire got a new lamp assembly on it's way to me free of charge. Nice to see them backing their product.....the person I talked to thought it was strange that such a little fall would break the lamp, and so did I, but they made right by me!!