12V Car Light Control Switch Photoresistor Relay Module Light Detection Sensor

this is a really cool little light sensor relay module basically you put 12 volts in on this side and then this is the relay which is like an off-and-on switch then you can put your circuits on over here you have common on the left and NC + NL normally close normally open I'm going to show how it wired up in a minute then you have this little knob right here that you can turn with a little screw driver and this will adjust the how much light is coming in so like for example the light that I'm using to make this video say I don't know how much light that is but you can start turning this knob until until the the relay switches or if you need if you want to use like a laser pointer then you could turn the knob a different way and have it only trip if like a really strong you know beam of light goes over like a laser pointer so I have it set up right now I think to work with a laser pointe