I purchased the Anycubic replacement parts from Spool 3D for my Photon Mono SE to repair the facotory installed defective parts. The order was filled and shipped very fast and my 3D printer was back up an running faster than I could procure parts direct from Anycubic, who always seems to be out of stock. I will continue to support Spool 3D for my future needs. Dave Pedersen Vancouver Island, BC