Emisar D4S review

Indeed! :wink: So Eloquently put my good man! :+1:

I bought this light several months ago, and it seemed that I had pretty much found the Holy Grail of flashlights (at least for my main purpose, daily dog walks).

Unfortunately it started flickering pretty badly about a week or two ago - mainly just after turning it on, or after changing the brightness level. There is also considerable stuttering when I try ramping. Sometimes it won’t ramp at all, or it will just jump from one level to the other instead of ramping smoothly, and it will also flicker on those occasions. It seems to be getting worse, and I am worried that it will soon become unusable.

Is there any remedy for this? Apologies if this has been asked before, as I have not got the time to read through all the comments on this post.

Flickering is almost always a ground issue. Make sure any retaining rings are snugged down and that all contacts are clean.

There is a known bug with the switch in firmware when the presses have bouncing or something simmilar.

It may sound strange, but is there a possibility, that you do not press the button “properly”? For example, the bug mentioned before can only be reproduced by hand by pushing the button “strange” e.g. from an angle and very soft.
In that case, the light registers multiple button presses where it triggers a different action than expected.

Just FYI, but cyan is not blue, although between most cameras’ poor white balance settings and possibly your computer/phone monitor’s color profile miscalibration, it may appear blueish in the photos.

> flickering

Besides making sure everything that should be tight is tight and all the threads are clean, consider putting a dab of conductive gel on the theads and on the tip and base of the battery.

Sometimes the springs may be making intermittent contact if the metal was cut at an angle, so make sure that contact is smooth and meets the battery at a broad flat position, not at a knife edge or pinpoint.

Cyan is halfway between green and blue on the color wheel. It’s primarily seen as a blue family and is a key ink cartridge in many printers. It is a mix of half green and half blue, but that makes it 75% blue as green itself is a blend of blue and yellow. :wink:

Thank you DB Custom.

Yes, i will have an eye to look for ToyKeepers posts, also have to search this forum to learn more.

Have been here many times before, ended up with an account to make questions possible for me.

Very fast response i must say, that response was mucho needed to awoid mistakes with my order.

To be, continued.

Nothing has changed in the way that I press the button, but I will follow the suggestions and report back. Thanks.

EDIT:

That was easier than expected - everything working nicely now, and I can no longer reproduce the flickering. Thanks for the advice - it really is a fantastic light, and I couldn’t wish for more (I’ve got the XPL-Hi version in NW).

SST20 6500K, 5000K, 4000K 95CRI options added for the D4S.

SST-20 6500K: 4200lm / 58,000cd

SST-20 5000K: 4000lm / 55,000cd

SST-20 4000K 95CRI: 3000lm / 41,000cd

I’d love a 3000k warm :slight_smile:

These numbers look seriously good, especially compared to XP-L HI (which I considered the best so far).

How about adding Osram KW CSLPM1.TG option? Looks like a direct drop-in and should really shine in this host….Vinh claims 4800 lm and 110 kcd.

Yes, we can offer that, please place the order on the site without choosing the LED & tint, then leave us a note about 3000K SST-20, customs order may take one week to ship.

Just when I thought 3 was enough….

Hank, how about a dedomed SST20 version for even more throw? Would that be feasible?

I don’t know SST-20?

How do they compare to other emitters?
For example to Nichia 219CT?

What will you choose:
Neutral White - Nichia 219CT 90CRI, 5000K
Neutral White - SST20 4000K 95CRI
or any other?

Thank you

Thanks Hank! That’s awesome! I’m going to place an order! I’ve been asking for someone to make some 3000k, thanks for this!

Gregor, the CRI on the SST20 4000k is beatifil. It rivals the best 219b R9080, and runs cooler . It should have a wide hotspot too. Just a wonderful emitter. otherwise get an XPL-HI if you want throw…Hanks’s 3A tint is killer good and clean! I should say XPl-HI my favorite in this torch currently all around…the kcd of the SST20 is also impressive; can’t wait to see the comparisons from out in the wild come in!

Excellent! Ordered.

Great to see more emitter options being added! Will need to look into the SSTs.

I was previously thinking about getting an XPL-HI version before the HD and SST options came out. Now I’m not so sure!

Anyone know if it’s possible to order a mixed-tint D4S directly from Hank? i.e. 2 x XP-L HI 3D and 2 x XP-L HI 5D?

Ordered SST-20 4000K 95CRI - Thanks!