Relay vs christmas lights

[geppox]

This is the relay module I used.
From amazon: https://www.amazon.it/KEYESTUDIO-solido-Arduino-Efficiente-livello/dp/B07DR9PX7P/ref=sr_1_14?__mk_it_IT=ÅMÅŽÕÑ&crid=STXR4PZOPZCA&dchild=1&keywords=ssr+relay&qid=1635032190&qsid=257-8271376-5644261&sprefix=ssr+relays%2Caps%2C73&sr=8-14&sres=B071HP9NJD%2CB07HT2BCKN%2CB08FWWRK2Y%2CB0716RTYMD%2CB07J5NR3XK%2CB07QML88BF%2CB07MBGF4W8%2CB093GGMJXN%2CB0752M8MMG%2CB005T7F3HE%2CB071462VL4%2CB07DR9PX7P%2CB07RLST1NG%2CB07QJYMC4W%2CB07Q81M988%2CB07QMSB6Z5%2CB07QPZ67D4%2CB07QS44SYH%2CB07QPMRDQY%2CB07PRW26B1&srpt=RELAY