Very cheap light. It wobbles because the included hardware was too big in some places. It was too small in other places. The arms of the lights sag down. 
The way the wiring is combined is very cheap. 9 wires into a single wire nut is not the best way to wire in a light. 
This light is lower quality than some Halloween lights I have bought from spirit Halloween in the past. Do not waste your money. 
If it was 15-20$ I would say it’s worth it. At 75-80$ it’s not even close.