Light sensor ATtiny85 code help

I do get light sensor code and little fixed it for ATtiny85 and use LDR.
This code purpose is avoid when, dark light value come this my set value.
Ligihting is then straight active not vibrate when it is near my value.
Can somebody more wise help to me in this my problem, how do it right???
My code:

/*
Tiny AVR Programmer
Hämäräkytkin ATtiny85
*/

int light = 0; // store the current light value
int photo = 1; // Ldr on analogi pinni 7.
int white = 4; // LED on digitaali pinni 3.

void setup() {
// put your setup code here, to run once:
pinMode(white, OUTPUT); // configure digital pin 3 as an output
}
void loop() {
// put your main code here, to run repeatedly:
light = analogRead(A0); // read and save value from PR

if(light > 450) { // If it is bright…
digitalWrite(white, LOW); //turn left LED off
}
else if(light > 80 && light < 451) { // If it is average light…
digitalWrite(white, HIGH); // turn left LED on
}
else { // If it’s dark…
digitalWrite(white, HIGH); // Turn left LED on
}
// delay(1000); // don’t spam the computer!
}