I have two kicks. One is working perfectly, but the other doesn't. I haven't tested voltage output, but I can tell it's not regulating the power, or if it is it's regulating it down to 5 watts. I can take a drag, but it's not at the 8 watts I set it at. The vapor production is low and the throat hit is nonexistent. I was looking at their site and they talk about a warranty, but I don't see any info about sead warranty.