L2D-CE Q5 Buzzing sound

[Jaslight]

I got my new L2D-CE Q5. At first it wouldn't turn on at all. So I cleaned the contacts and then fully pressed the switch which seemed to work. Now it turns on but when I cycle through the different modes and I get to the 107 lumen mode, it starts to buzz and it does also in turbo mode. Is this normal ?

 

[Jarl]

Yes.

 

[TONY M]

There have been a few threads on this topic recently. The new L2D's with polarity protection seem to have it worse than the older L2D's. My old L2D does it also.

 

[generic808]

Just let it run for 20-30 seconds and it will go away.