Sunlu customer service not helpful.
I purchased the Sunlu Filament Splicer through Amazon from an independent store offering Sunlu products. I lost the odd USB cable which has a USB A on one end and a barrel plug on the other. I indicated I needed to buy a replacement cord or to get the specs so I could locate one elsewhere. Not a warranty or missing part claim. Support wrote back asking for more information to verify purchase since I was not in their database. This was a canned, non responsive answer. I subsequently located the part elsewhere but I am unhappy with Sunlu's response.