photo sensor

when i plug 5v to the sensor it read too high i mean the degree but when i plug 3.3v it is normal what is the problem??

int led = 13;
void setup () {
 pinMode(led, OUTPUT);
void loop () {
int value = digitalRead(A1);
int value1 = analogRead(A1);
if (value == LOW) {
 digitalWrite(led, HIGH);

 digitalWrite(led, LOW);
delay (1000)  ;

Your code doesn't make any sense to me, what you are trying to measure?

what is the problem?

What is the sensor?