Mine came in today. I love the light, but hate the high pitch tone in mode 3!
Please check your lights, maybe mine has a lemon driver? I cleaned and made sure all points are tight.
No sound from mine
There definitely should not be any noise. You should contact Simon. He might ask if you can provide a video so he can better see/hear the problem. My only lights that have any kind of whine in any of the modes had drivers that were PWM regulated. The L6 driver doesn’t use PWM so something else is wrong. You should send Simon a message in his store.
This photo shows the colour rendering from the 5000K 3A emitter.
In comparison with all my cool white lights, the colour rending from the L6 5000K is fantastic despite not being a dedicated high-CRI emitter. In a test setting it is not quite as good as the colour rendering from a 4000k Nichia or 3000k 90+ CRI XP-G2, but out in the wild there is little noticeable difference. The photo below is unprocessed and you can see that there is good colour saturation from the L6’s beam.
Something arround 70( but not R9)
Mine is cool white and the default CRI is 32( the torch one, not the emitter itself), R9 is arround 18: yes i know its pathetic but thats a flashlight, not a led light for a surgery room or an art gallery lighting
The numbers are that low cause of the AR glass, havent measured them without it
Thanks for the pic stephenk. Very helpful.
And how do you like the tint? I know you played last night. 
I’m hoping someone picked up the L6 with the 5700K tint?
How does your 5700K tint compare to the 5000K tint thus far?
Gosh, how I love to compare before purchasing. It’s half the fun. :laughing:
I like the tint a lot. It’s a bit warmer than I thought it would be. I guess that’s to be expected since I’m used to cool white emitters. That said, I’m extremely pleased with the L6
He told me tighten it, and clean contacts. I did. The sound is still there. I ordered direct from him. Not gb or anywhere. I am sure I have correct driver.
Jake did you try jumping it with a wire, while pushing the batteries tight , to see if it’s spring harmonics? You could also try re-positioning the driver or rotate it a little and tighten the retainer, make sure it’s centered and seated, before cranking her home. My e-switch ground wire was close the the driver side ground ring, might be hanging up on that, you’ll get ground, the light will work, but there might still be an air gap?
Just out of curiosity, what kind of cells are you using? Are they over 70mm?
From his post # 3 Solder blobbed Basens to make contact? My l6 has high pitch sound Updated My Basens are 66.5mm. and I used them in the L6 no problemo and no blobbage?
That’s really odd. I tried multiple times with my basens. Nothing. I tightened everything up and nothing. Then I tried a tiny magnet on the positive side of the second cell and light worked great.
I will have to try using wire to jump while pressing on the batteries.
My basens say pluse not pulse, are they fake?
It seems no one else is having these issues.
I tried pushing the battery all the way in and jumping it. I still had a high pitch sound. I think it was louder with cap off the light.
I made sure the retaining rings are tight, I did not remove them, I don’t want to ruin any chance of warranty with this light by messing with it
Sorry for delay jdub, I am using basen 4500 60a cells brand new
The high-pitched sound may be coming from the inductor on the driver board. Probably the winding not being tightly wound as it should be. If that’s the case, it’s an annoyance, not something that will cause problems in the future
I have both Pulse and Pluse hahaaa! Fake? I don’t know, they both work great, so far? But that’s what I was using in the L6. I have 8 Pulse from LiionWholesale and with my Digital Vernier they’re within 1.3 of each other, the Pulse being shorter? http://liionwholesale.com/collections/batteries/products/basen-4500mah-26650?variant=14135870212 Yeah I wish you would try the jumper check, I need to know! 
I have never run across a noise problem, that or I’m just not sensitive or just deef, or both! :person_facepalming: Can you post a pic of your L6? Are you using the Tacticool Ring?
That is good to know. But I really like using this light I don’t wanna hear it when I’m using it all summer
Here’s a pic, maybe the inductor? Got some silicone around the sides?
If it was me I’d pull the driver back, wires should be long enough, and hook up a couple batteries to the driver and test it out side the light. Should be able to inspect it a bit, see if it’s anything obvious, broken solder bond between the 2 tabs, if thats what I’m seeing in the pic? Then go from there, let Simon know?
[quote=Kozy]
opinion or experience for this?
Keeppower IMR 26650 battery 4200mAh
Not protected…
[/quote
in my lights, the kp’s did better than kk’s and mnke’s, but the efest dark purple 4200’s are still the best.