Mini Dark Activated Led with one Transistor (9V)

Sometimes Circuits you find on Internet doesn't work. A little tweek can help. You can even make R1 1M Ohm. It works better that way.


Final Work
* Karanlıkta otomatik devreye giren tek transistörlü LED. 9V pile direk bağlı.

EDIT:  It is working for "months" with the same 9v battery ! The performance is beyond my expectation !
Kaç ay oldu pili bitmedi (hergün kullanılmasına rağmen) Beklentimin ötesinde düşük güç tüketimi var.