Electronics 2000

Hi people I'm wondering if I could get some help. using pwm method with Arduino i am getting a dim light when it should be completely off the code is correct but i think it maybe the circuit. I have built an rgb led driver using an LM317 connecting the Vout and adj via a resistor that then goes to the positive connection of the high power LED than it passes to a MOSFET the stp14nf10 The leg controlling the pwm is connected to the led.

I appreciate any reply thanks

Hi there, singh, I was about to write the same question when I saw your post. I've got a position of an electronics enclosure design at an electronics development company and I faced the situation when using pwm for Arduino I get a dim light while, to my understanding, there shouldn't be any.
Waiting for any suggestion. If I find anything on the Net I'll post it here.