Mar 3, 2013 #1 BlackAngel-SCUBA Newly Enlightened Joined Oct 19, 2012 Messages 23 Location Lebanon, Pa im making a dive light and just finished wiring up my cree xml u2. the problem is when it is on high it has a humming/buzzing sound. is there a problem or is this normal?
im making a dive light and just finished wiring up my cree xml u2. the problem is when it is on high it has a humming/buzzing sound. is there a problem or is this normal?
Mar 3, 2013 #2 T Toaster79 Enlightened Joined Mar 16, 2011 Messages 206 Location Slovenia Probably the driver is making that noise. Everything that runs on PWM is making noise but not always can you hear it.
Probably the driver is making that noise. Everything that runs on PWM is making noise but not always can you hear it.
Mar 3, 2013 #3 Thr3Evo Enlightened Joined Mar 1, 2012 Messages 260 Location Newcastle, CA A quick google search of the forum reveals this question has been asked and answered lots of times already.
A quick google search of the forum reveals this question has been asked and answered lots of times already.
Mar 3, 2013 #4 J jabe1 Flashlight Enthusiast CPF Supporter Joined Apr 25, 2008 Messages 3,115 Location Cleveland,Oh Usually, It's the inductor making the whine.