Question on Surefire EDCL1-T noise

tom1995713

Newly Enlightened
Joined
Jul 21, 2020
Messages
1
Hey everyone!
I bought SF EDCL1-T a few days ago.
This is satisfying to me, I found one small problem.
When I operate this in high mode near my ears, the a little bit buzzing sounds in my ears.

I wonder if the other users are the same.

Thank you :)
 

peter yetman

Flashlight Enthusiast
Joined
Mar 23, 2014
Messages
5,100
Location
North Norfolk UK
It's the inductor on the driver board vibrating at a high frequency.
It shouldn't happen in a quality driver, but it's quite common.
P
 

DayofReckoning

Enlightened
Joined
May 1, 2018
Messages
572
Location
USA
It's normal, almost every two stage tailcap from Surefire I've had has made this buzzing (K2 was quiet, L2 was LOUD).
 

coffeeandlifting

Newly Enlightened
Joined
Jun 16, 2018
Messages
30
Mine makes a slight noise that I only notice if I'm in a very quiet place... never worried about it. Most newer lights that run on 1xCR123 make some noise IME. I think it has something to do with boost drivers, because my 2x and 3x lights are completely silent when in regulated runtime.
 
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