Looks like i’ll picking out driver out this weekend then...
Small leaks can happen in all sorts of ways, and they happen on many different flashlights. Usually when this sort of thing comes up, people have been able to solve it by cleaning the inside of the light or possibly just moving the parts a little and re-seating them.
The last case I ran into was a LT1 which had a pinched wire inside. The owner wrapped the wire and arranged it carefully for re-assembly, and it was fine.
Sometimes cleaning the contacts or blowing out debris is enough to fix it. Or sometimes briefly tapping a few PCB contact points with an iron fixes things. With computers, it used to be somewhat common for people to fix a broken video card by baking it in an oven just long enough to soften the solder a little.
Thx TK. Good info.
It might not be a coincidence that these two examples are non anodized lights
No more… it’s on the move .
I made some tactical rings for the KR1/KR4, for the short and long tube. Click on the images to get to the corresponding post.
Post #2000!
(at the moment.)
Hey my KR4 arrived today after a long journey! Shipped April 10th, arrived August 13th.
Pleasantly surprised with mule configuration and very happy I went with this choice, although I’m looking forward to that deep carry clip that’ll eventually be coming out, the bundled clip is definitely a weak point on this light.
My LT1 still leaks. (Not that I’m too bothered about fixing it - I’m sure the discharge is negligible.)
I tried to photograph it, with trit vials for brightness comparison. They are much brighter… Can you see it below? (Note: the image is blurry due to a 1s+ exposure with my cell phone)
I had this issue with drivers that I’ve damage in the past with reflector shorts, too.
A long long time ago I had a geforce 4200 that would fail to boot from cold but if I heated it with a hair dryer it’d work just fine if I never turned off my desktop. No problem when I lived in the college dorms and didn’t have to pay for power.
Unrelated, I received my KR4 sst20 4000k this week and just used it while repairing a sprinkler line in the yard because it was too hot out today to start earlier while the sun was out. It got pretty muddy and still works after washing it off in the sink afterwards. Awesome gadget that’s also a functional tool.
My la crosse NiMh charger died after almost 10 years and I finally invested in a charger that will charge NiMh and L-ion and some 18650’s and this forum has been really bad for my wallet.
Hi ! I like your comparison picture :+1:
To your eyes, is the Max output “Lumens” of your E21A (7 step 5amp) similar to the 6th step from your other D4 ?
Do you think the frosted lens makes it much dimmer than the SST-20?
Sorry for late response
Yes I would say. 6th step SST-20 and Max output E21A is in the same range. It´s not the same beam profile. So the output is not exactly comparable.
The frosted optic you can compare with the Beam profile from the AT Wizard TIR optic.
The SST-20 with clear optic is much more spotted
https://www.taschenlampen-forum.de/threads/emisar-d4v2-nichia-e21a.77145/
Hope you can see the pictures
The SST-20 is also simply a throwier beam. You will always get a brighter “hotspot” then an E21a, but you obviously get less off to the sides.
So it depends on where you need to light. Personally i think the E21a is better around the house.
One thing i did was take the non frosty optic (10622) from the regular D4v2 and sanded it lightly in circles. Its got less beam shift then without the sanding, but its proved a little more throwy then the 10623.
There is still a little more beamshift than the 10623, but its managable. I have two anyway so i go with what i feel like.
Ive got some more constant current D4v2 lights on the way, im looking to add one of my new favourite emmiters. The SST-20 3500k dedomed. Should have decent throw (for a multi), roughly 3000k and a beautiful tint with no SST-20 green/yellow that they all have stock.
Personally i cant stand the stock SST-20 4000k, even the bins that people claim to like still have this odd green/yellow in parts of the beam. Only time ive seen a beam that is somehow pink and yellow/green at the same time. Dedome those babies and they certainly clean up nice.
Is it a true dedome or a slice, as has been common on SST-40?
Sorry, yeah sliced, almost down to the phosphor 
Been through a few of them getting them that low 
Basically every single partical of the dome i cant without cutting the wires.
Have people been able to pop the dome off the SST-40 have they? I sliced mine in another light. Didnt get the CCT drop i was expecting, but its got nice throw and tint up high.
The 3500k is really nice sliced. Very rosy, great CCT and amazing CRI and throw. By faaaarrrr my favourite SST-20.
Ive been getting them from Kaidomain. They dont have any of the loose in stock, but you can get what’s left of the triples and reflow them if you want to try them.
Thanks, excellent review, with good outdoor pictures (a must). I just had to login to be able to see the picture in normal resolution.
I’am returning my Wizard Nichia because of the tint… I cannot get used to it, I tried really to like it but each time I use it, I got that yak reaction. :confounded: bad tint lottery)
Also, I notice that the Wizard Nichia is too floody to my taste… I’am looking at a D4V2 E21A 5000K with clear carclo, because the tint shift for outdoor use doesn’t bother me (the 144AR 4500K is to greenish yellowish, eventhough the TIR do the mix)
DrDevil ?
Would it be possible you take an outdoor picture from your D4V2 e21a > but with the clear carclo optic? I’am really curious about the beam profil/throw of a e21a quad at 5amps…
Thanks!
John75, you probably already saw maukka’s review of Noctigon KR4, but if not… there is an indoor beamshot of KR4 E21A with clear Carclo 10622 optic.
Maukka said the throw of his flashlight was about 7 kcd at turn on.
Yeah, unfortunately the beam profile on the 10622 isn’t good. I lightly sanded one on my 3500k and it gains throw over the 10623 and doesn’t look anywhere as bad as maukkas 5000k. Still far from perfect though. I have two so it depends on my mood …lol
I am wondering if small OP reflectors instead of TIR optics would work better with the E21A.