I ordered: "100PCS WS2811 IC Led pixel" I got 2x50pcs, 1st 50pcs is OK, 2nd 50pcs - only 14pcs work ok, the rest are damaged/off. Suggestion from seller was to go in repare shop and pay to fix this !!! Seller send damaged and used led pixel and then said: go to repare shop and pay for fix. This is definitely not normal and big shame !