Hank, I’m wondering about ordering a D4SV2 with the new constant current driver but with 4 identical emitters (no tint ramping). In this configuration, will the maximum output be lower than the standard D4SV2 with the same emitters?
Hank can you use a 7.5A noFET driver to power the 219BT-V1 diodes in the D4S V2 flashlight?
The question is about the D4S V2 in the two channel “channel ramping” version (2× 219B 2700K 7.5A and 2x XP-L HI 4000K 9A).
5A for two 219B diodes is a very delicate current. I would prefer 7.5A.
7.5A / 2 = 3.75A per diode
One 219BT-V1 diode can operate stably up to 4A. http://i.imgur.com/bkodESs.jpg
Another question is about the flashlight in a different configuration:
More and more people want to buy an Emisar D4Sv2 flashlight with four Osram W1 LEDs with a single channel driver with full stabilization and with an unlocked FET for Turbo as it is in the KR4 flashlight (9A Constant Current + Direct Drive). Hank are you able to prepare such a driver for D4S V2?
I see that user “CollectEverything” is also asking for the same configuration.
The D4SV2 with 4 Osram W1 LEDs is offered with an outdated driver (FET+ 3). I think many people would gladly buy a D4Sv2 flashlight with 4 Osram W1, W2 or XPL HI diodes if it had a driver like the KR4 has (9A CC + DD), because such a driver would give very good high brightness stabilization.
Hi,
I’m planning to order D4v2. Is there a samsung leds options for this flashlight via sugestions?
(If yes, any post or information about it such as numbers of flashlights max and continuous outputs.)
I’ve been holding out for a 21700 single emitter w/ Anduril2 and - most importantly - a buck/boost driver for so long. I have a D4v2 (5A driver) but never use it because it can’t sustain the output I need. Was about to give up again and order a ZL SC700d. (And/or a KR1 and mod it with theFreeman’s or Loneocean’s drivers.) Can’t wait to order a DM11.
I know it would be absurdly heavy, but I’d get it in brass black. I’d actually get a K1 in brass black if it would take the DM11 driver. I’d have to lug it around for miles in the desert but it’s worth it for copper/brass.
Anyway, can we request the DM11’s driver in the K1? Will the D4V2 or KR1 get the new buck drivers?