General Specifications: 500mmx500mm size 176×176 pixel dimensions 208v power only A4s receiving cards Powercon in/out Seetronic data in/out (standard RJ-45 connectors, OR seetronic locking connectors, ethercon DO NOT work) Indoor use (not water-resistant, or high enough NIT/brightness for outdoor use) Hot-swappable front service, magnet mounted modules with backup retainer screws manufacturer link: http://www.lightking-led.com/pro_view-29.html?msclkid=3af1cf3faa2511ecb70f3ac4cb6b6ee4 Quantities: (QC methodology/criteria/notes listed below) Total panel count: 232 (29 cases) QC passed count: 192 QC Fail count: 38 Spare LED modules: 29 (all appear to be new) Spare PSUs: 0 Spare receiving cards: 0 Spare frames/main boards: 0 QC methodology/notes: Each panel was connected to power and data in/out to test all ports. R/G/B/W test patterns were transmitted to determine LED condition, as well as a fast-moving video file to test for ghosting or receiving card issues. 100% led integrity is nearly impossible to maintain for a working inventory wall. For Pass/Fail, I used the “20 foot in white” criteria. If there was a noticeable issue from 20 feet away with the display set to white, such as a cluster of multiple LEDS stuck/damaged/dead, it failed. QC pass conditions: bad pixels scattered thru panel, all data/power ports functional QC fail conditions: 5 or more bad (damaged/missing, stuck, dead, etc) in a cluster that is noticeable from 20 feet away with display set to white. Also any receiving card or port issues automatically fail. QC notes: the vast majority (80+ %) of the panels have 3-5 scattered bad pixels, whether that’s completely dead, one color dead, or missing. The panels tagged as QC FAIL generally only have one bad/damaged module, so between the spare modules (that appear new) and swapping parts around, I don’t think it would be too hard to bring the working inventory up to 210-220 panels.