This is why your LED Christmas lights flicker - gun8
EDGELEC 30pcs 12 Volt 3mm Blue Flicker LED Lights Emitting Diodes (Candle Flickering Lights) Pre Wired 7.9 inch DC 12v LED Light Clear Lens Small LED Lamps : Amazon.in: Home & Kitchen
7 Top Common Causes of LED Light Flickering and their Solutions