Great comparison, Cheule! This is now the perfect destination for anyone asking about the difference between the optics in Hank's small and large formats with both throwy and floody emitters.
We need a reference page with a matrix of LEDs and their associated color temps, lumen outputs and how that size of emitter performs on certain sizes of optics.
I had an audiophile friend...his favorite thing is music, but he hated listening to music because only his zillion dollar setup sounded good. I am getting into custom flashlights and learning emitter details and the like....I made a promise to myself to never become like that friend. Thankfully, I found both your lights to be absolutely fine, so I am staying the course! lol Looking forward to my eventual foray into a 3-channel quad with a W1, a pair of floody somethings, a UV, and whatever AUX can give me the best red-light option. A swissaarmy light.
Thanks for the demo of W1 in the d4sv2, something I wouldn't of tried. Guess all those extra W1 I'm not putting in my FireFlies E07 will be going in my 2 d4sv2. Beam looked to have less rings with that Ledil optic too.
Just purchased one after watching this video, love your videos, you explain things really well and also get strait to the key points. Thank you I definitely love how much more throw the larger one puts out, does the lumens gradually drop on this light or is it very quickly?
As the battery sags, the lumens will drop. But the emitters don’t “wear” if that’s what you mean. Just get the battery back to 4.2v to get maximum output again.
Well, all nice and dandy, but you have the "DC Fix" on the KR4 tho.. so it is obviously going to smooth out the beam and make it a bit floodier as well.
Might be possible that the larger optics on the D4SV2 mix the color differently and its an illusion that the tint is different on the KR4. You could test that with DC Fix (model 346-0211) or another translucent window film for diffusion. There are some forums where people show they have tested some models of DC Fix for LEDs and flashlights to mix the LED color and it works well. I suppose even a translucent satin plastic of any sort would work for a visual test as long as it can completely diffuse the light so there are no hot spots.
I found that Hank accidentally sent out 5000K emitters to a bunch of people that asked for 5700K. My situation isn’t isolated. Seems like I was the first to notice, then tac_griz and a few others said “heeeeey! Mine too!”
I took the optics off the d4s to see if that was the issue as stated on the forums but it is not. The lh351d emitters in my copy are green garbage with optics or not.
I just went on Hank's webstore and put together this exact LED combo without knowing that's what you had (wasn't paying attention the 1st time I watched the video). My question is, how are these LEDs with heat management and step down?
Had 2 of them and both has completely died good luck on yours buddy, there just too much stuff going on I guess one of them lasted about 6-8 weeks the other d4s version lasted a tad longer one quit working period the other quit switching channels and was stuck on throw maybe you’ll have better luck
If you're content with the 26650 cell format, a "small mace holster" from a local police uniform shop fits the D4SV2 beautifully. With a 26800 cell tube... I'm not sure what to do there.
Nice video. Is W1 in KR4 thrower than single emitter+reflector like SC31 pro size? I’m considering the same emitters choice but I’ve never had multi emitters light before.
Damn, I just got another D4SV2 in the mail with a single emitter. I wish I had known that you could split the emitters to get flood and throw. The thing is still brand new. Are there any reputable places where I could sell it?
You can configure the dual channel driver on his order page. But additionally you can email him and he’ll tell you how much additional to send (if you’ve already purchased a light as single channel)
good afternoon! I'm from Russia. I really like this flashlight model, but we have little information about it, tell me which model is better to buy? and where can I buy with delivery to Russia?
There are two listings for D4SV2. One is single channel, the other is dual channel. This one is dual channel, and Cheule has configured his with the throwiest LED available (Osram W1) and the floodiest LED available (Samsung LH351D). It's all configurable on the dual-channel product page.
