Dereelight DBS Aspheric throw figures (with new EZ900 0.9mm x 0.9mm WD pure cool white tint 1.5A 3SM pill)

Ok I guess I am lost. I don't see the Crelant 7G5 shot.

And one more question. If this light is such a great thrower, then why is it only about 250 lumens or so? I guess I don't undertand how it can be brighter than the TK70 as for lux reading at 1 meter. Please explain if you will.

See my above video, everything is there! LOL! :D

If you get 4 DBS V3 aspherics, it would be 1000 lumens and have a hotspot that is only twice in diameter than the original one. It doesn't take much to reach 2200 lumens, just another 4 more DBS aspherics, but only increase of what 33% in diameter? (someone do the math pls)

Also, aspherics are a bit different from reflector setups. As you can see, the hotspot is even a wee wee bit bigger than the Solarforce MPP-1, but lux figure is twice as much.

In fact on a reflected ceiling bounce, the Solarforce MPP-1 registers 22.1 lux. The DBS aspheric registers a paltry 15.9 lux. Sealed Actually the DBS aspheric is like ~ 160 lumens OTF only. Thing is, nobody is going to do ceiling bounce or light up a big room with this. This is for outdoors use only.

Short arcs can be in the 2000 lumens range, but do 12 million cd and throw for several miles.

It's above the DBS. You can't really see it because it's too much ambient light.

However this BDS is an aspheric with an XR-E R2 (EZ900 die) and of course the 7G5 is no match for it.

7G5 is slightly superior compared to all other XM-L throwers.

As you can see, the hotspot of the 800 lumens OTF Crelant 7G5 isn't that much bigger than the 160 lumens OTF of the DBS aspheric.

My 65W Ebay metal tube HID flashlight smokes this though (and so will the 75W and 85W versions).

This is what I said:

You can see the corona lighting up some parts beside the Crelant 7G5 hotspot. Also there is the spill light, but of course for such comparisons it does nothing.

Ok so what you guys are telling me is who needs a Crelant 7G5! Laughing

Nothing to do with Crelant 7G5, add there all the xm-l throwers you know. :)

Not really, that one is one sexy light as well.

Who needs 60 Solarforces as well anyway.... (I think it's old4570?)

Shoot. I think that this thread has convinced me that I need one. I have yet to get a good aspheric thrower so I may as well pull the trigger (ohhh my college student bank account :()

Did you also compare the DBS with XM-L to the crelant?

I assume it will throw less, but would be interesting to know by how much.

Not really....well by figures they are pretty much the same on the meter actually. (DBS with T6 3C pill)

But remember, the Crelant is a 63mm front diameter bezel, the DBS is a 55mm.

The Fenix TK70 is 3 XM-L’s right? The XM-L emitter has a surface brightness that is less than a XR-E. So having 3 XM-L’s doesn’t make the emitter surface any brighter.



Those 3 XM-L’s don’t hit the same spot. They make the spot larger. Throw is about lux and not lumens. The XM-L’s put out a larger wall of light but in any one spot the XR-E is brighter.



Take any of your XR-E lights that are driven at around 1A and take any of your XM-L lights that are driven close to 3A and shine them at a wall.



You will see that the center of the hotspot of the XR-E light is brighter than the center of the XM-L beam. The XM-L puts out more light (lumens) but the brightest part of the XR-E beam is brighter.



The brightest part of the beam controls throw because that’s all that’s left at that point.

2100, which pill choice is the one for 1 mode and for one or two 18650’s? Does the light come with an extension tube or is that separate?



Just to be clear…you can go for a two 18650 pill and still sometimes use it with only one 18650…right?

For 1 single mode in max output (ie "tactical usage") and be able to use 2 cells (2 x 18350/16340/18650) it would be 1SM. Pls confirm with Alan of Dereelight.

The extension is EXT650, that makes it able to use 2 x 18650. It is usd12 additional, and is hard anodized.

With a 3SM multi voltage pill....and using a 4.08V TF Flames, i got 7.8 lux reflected.

With 2 x 18350, i got 9.7 lux reflected. So with a single 18650 it is still pretty bright.

Hi 2100,

The 1SD and 3SD pills are optimized for usage with single cells, which is what I want. With the LED driven at 1.2 A, how much of a difference would

there be in terms of lux? For example, if you're getting 93k lux at 1 meter right now with 2 18350 IMRs, how much would you expect to get with 1 18650

at 1.2A as opposed to 1.5 A?

Thanks in advance!

You'd not want the 1.2A pill, the last one i got was about 60k. Also due to bigger die. This is 90k. That's not a minor/invisible difference.

The single cell pill, after stabilising for heat, would slowly lower in output in just minutes albeit very slowly. You need to ask yourself whether you want to pay 80 bucks for this kind of performance? Makes no sense. I already made that mistake, luckily the new smaller die came along (not expensive also) so that mistake can be written off.

Just get the BIO IMRs, they are usable for many other stuff. Safe too, they are no Li Co. On this light you still get like 80 minutes of run time. Seriously i don't see why people wanna get 2 x 18650, this is not a XM-L flashlight like the Sunwayman T40CS in which the tail draw is 1.5A.

Is lux like lumens? For example, do you need four times the lux for the spot to appear twice as bright to the eyes?

Oh, I didn't realize that IMRs used a safe chemistry! That's fantastic! I'd be comfortable experimenting with some multi-cell lights using these batteries.

If I got some, I would probably go with AW IMRs from lighthound, since I've heard that website provides fantastic service.

However, there is a note stating that IMRs have a lower internal resistance, and thus, if left to charge in a standard charger, may surpass the regular 4.2 Volts. I don't own a multimeter to test batteries...do you think this would be a major issue/safety concern? I guess that I will eventually need to invest in a quality multimeter...but not yet.