I have one of these on the way, and I was wondering how it might run on a lifepo4 as I have a few of these idling in a drawer. Short runtime is the most obvious issue. Has anyone tried this.
You have some slim chance to use them, but mostly only at low to mid levels. This is very emitter type dependent. If there would be D4SV2 with a few lower forward voltage emitter options, it could be even fully useful, but for some emitter types, you will only just get past they being lit up.
I don’t know, what is the power cutoff limit on low voltage, but I guess, it should run until it gets below 2.8-2.9V - which means, you will need to know your battery model, because I have seen IFR (LiFePo4) batteries running near 3.2V most of the time only when current draw is low. When current draw gets higher, they can run anywhere lower in the 2.0-3.1V range, but the voltage will be nearly flat during most of the discharge time. You might want to look up your battery here as well for more info (Battery test-review 26650 comparator).
Thanks Adam, I see an A123 can be discharged at up to 30 amps so it seems heat might might need to watched too. I look forward to testing it. Hope it arrives before xmas.
My 2 D4SV2’s arrived today – one deep red and the other SST20 4000K 95CRI. The deep red is awesome and I was pleasantly surprised with the softness of the 4000K.
Using 26350’s on both as well as my 6500K. Works great
Hi
Does anybody know if there is another 32mm optic available for the D4SV2 ? I did a search but could not find any.
I am happy with the optic that’s on the light its just my OCD has fixed in on those numbers right in the middle of the lens and it’s killing me. Would love one without any numbers right in the middle of the lens.
Would much prefer it to be clear in the middle and see all the inside alot better.
The number refers to the model of the optic… In the case of the D4S, I recall it uses the Ledil Angie 2285 (which is the “2285” on the optic)
Someone here in BLF sent me a Ledil Angie 2287 some time ago (since I also was unable to source such an optic), which I posted in the message thread below: (the number “2287” is labeled on that optic)
Yep looks like all the Ledil optic’s do that. I have some Carclo optic’s no numbers on the lens so much better. Anyway I gave the light to my bother so no need to worry about it anymore.