Emisar D4S review

A bit of tech-writing nerd/nitpicking/pedantry here …

https://brians.wsu.edu/2016/05/16/acronyms-and-apostrophes/

Like it or not, apostrophes at the end of acronyms, initialisms - and by extension product codes/names such as D1, D4S, etc - is incredibly widespread. Thus, D4’s to indicate plural D4 models is perhaps more explicit than D4s with its potential for confusion with D4S and also avoids the contextual (albeit making sense from a spoken perspective) D4Ses to indicate plural D4S models. The apostrophe introduces a break not usually seen in initialisms / product names, cluing the reader into additional information - whether it’s plural or possessive is hopefully made apparent by the context.

D1S is the super/bigger variant of D1
D4S is the super/bigger variant of D4


OK folks …. poll for me …

I have green D4S with green aux (my HULK or Green Lantern light)

Ima buy a grey D4S ….

should I go Red or Cyan aux?

My initial plan was red , until Hank posted this image….

Can’t wait to see what you come up with next! :+1:

Those tricksy D4Seses

timbo114 - Not a good picture but….

I like the black/red Empire/Sith combination quite a lot.

M43S :smiling_imp:

Hmm… I dont’ have a flashlight with LH351D LED yet. Maybe can ask Hank to do a D4S with LH351D, preferably 80CRI or higher CRI (somewhere 4000K or 5000K or the mixed tint that TK mentioned, if the color temperature isn’t available…) Anyone else interested in such a configuration?

I understand the LH351D will be floody (I find the D4S quite throwy actually with its existing LEDs…)

M44S?

M458S? :smiling_imp:

Who would do such a thing, Blue? :open_mouth:

My D4, D1 &D1s are my favourites of all my torches ,I’ll be getting a D4s when funds allow.

The SST-20-W 95CRI with HD2 tint bin from KD looks great. I’ve installed a bunch of them in single emitter and triple emitter (Wuben TO10R, TO46R) lights and they are second only to the E21A 3000k. At lower output, they are kind of yellow (above BBL) and at high output, they become rosy (below BBL). At very high output mode, they look as good as the E21A.

Please don’t use the LH351D unless it’s the T1, T2, T3, or T4 tint bin. The current supposedly below the BBL tint bins on the market looks yellow/green. On my Noctigon M43, the LH351D 4000k 90CRI looks ugly green shining through those Carclo triple optics. The XP-L HI 5D and especially the XP-G2 5D tint looks WAAAYYY better.

I’m really curious if someone know the SST-20 tint bins offered by Hank. I need to know the tint bin before I make a purchase. Whether it is HI CRI or super bright or throwy, if the tint is greenish it is no good to me.

4000K: J5 FB4
3000K: J4 HD2

Wow. This thread is super active… intl outdoor has been great for me. I received the lights quickly… i might need to get another d4s sst20 5000k or 6500k…

Were those confirmed by Hank? I’m impressed with the high flux bin. In comparison, KD sells the exact same tint bin but one flux bin under.
4000K: J4 FB4
3000K: J3 HD2

However, I wish they could have gotten a rosier tint bin for the 4000K. Fireflies uses the FA3 tint bin and is still slightly yellow. FB4 is one tint bin greener.

Yes, confirmed by Hank. To be more specific:

4000K: SST-20-W40H-A120-J4402(J5-VH-FB4)

3000K: SST-20-W30H-A120-J2302(J4-VH-HD2)

I wish the 4000K was a rosier bin too, but I can live with FB4 with a filter over it. I’ve put Zircon 804 over the 4000K from Kaidomain before and it’s nice.

Me too and soon!!!

Great info thanks. Zircon filter reduces output by almost 20% though, so that negates the 10% flux bin advantage over the J4 flux bin of the KD and Fireflies SST-20 4000k