Got my Arc 4+ last week, serial number 0910. What a great company, ordered it on a saturday, they mailed it out on monday, got it on a tuesday. I love the light so much, I jumped on the LSH-S special and grabbed an Arc-AAA at the same time. Went from 0 Arc's to 3 in less than 2 weeks. Now if I can get to the credit card bill statements before my wife, I might live to play with them.