from tkinter import *

from PIL import Image,ImageTk
t=Tk()
t.geometry("250x125")
t.title("Ligar a Luz")
img1=ImageTk.PhotoImage(Image.open("0.png"))
img2=ImageTk.PhotoImage(Image.open("1.png"))
l=Label(t,font="bold")
l.pack()
x=1
def move():
    global x
    if x==4:
        x=1
    if x==1:
        l.config(image=img1)
    elif x==2:
        l.config(image=img2)
    x+=1
    t.after(2000,move)
move()
t.mainloop()

0.png

1.png