Latch or toggle switch (flipp-flopp) changes output to opposite each time when triggered.

That circuit was designed to latch on forever. You should look at it again.

 

That circuit was designed to latch on forever. You should look at it again.

there is a manual switch in circuit and no 555
thanks anyways

 

there is a manual switch in circuit and no 555

Those manual switches are used for simulating a LDR, hence they were labeled. Why must there be a 555? But alright, whatever