Warranty period starts (and may terminate) before you buy the miners
I bought several Scrypt miners from them. The delivery was super slow. But the worst is that one of the miners (Antminer L9) after just a month of use started switching off and sometimes wouldn't turn on on the first try. I contacted Leedminer, sent the the log file, their advice was "re-plug the cable and try again". Over time the miner worked worse and worse, sometimes I would need 10-15 attempts to start it, until one day it just stopped working and wouldn't turn on at all. I contacted Leedminer again, but they said that "the warranty for this miner is 1 year. However, 1 year counts from the date it was manufactured, not from the date I bought it from them". Since it was manufactured more than a year ago, they just told me that now that is my problem and they can't help me. They also claimed that they warned me when I was buying the miners to check the date they were manufactured and see how much warranty is left using the serial number (a lie, they never said anything about the fact that the warranty period had started before I bought the miners, and they also provided serial numbers only after the miners were shipped). So, to summarize: 1. The miners they sell might have no warranty at all - if they had bought them long time ago and they were on their shelf for a long time. 2. When the miner worked, but the issue appeared and there was still time to locate the problem and fix it - they suggested to just "re-plug the cable". 3. At the end they also gaslighted me, claiming that they warned me about the warranty, which they never did. Overall, i wouldn't recommend buying there and instead pick some other companies.