Dark Activated Night Light

A dark activated night light.

Please also see this one by H4ZZ498
It's the same thing, he made it first thogh.

Breadboard (You could make a PCB if you want)
Any NPN transistor
One LDR
10k resistor ( Or trimpot for variable sensivity)
A LED ( You choose the color)
2X AA battery pack or any 3v battery

Build the circuit on the breadboard!

Done! Now turn off the lights and it should light up.