There’s an unfortunate bug in first-run Emisar D4V2s sold through International Outdoors before July 19.
When put in muggle mode (6 clicks from off) and run with a partially depleted cell (about 3.8v or lower), these lights effectively enter “self destruct mode”. After approximately 15 minutes of being off they will turn on and start flashing at full power with no ramp down from the thermal sensor.
If this is an 18650 cell, the lights may overheat, which in a couple cases caused some or all of the following: (1) plastic optic melting, (2) driver wires desoldering, (3) button boot and retaining ring popping off. Probably from expansion of the aluminum head.
As a safety measure it is recommended to avoid using muggle mode if you have one of the affected lights until fixed. The fix requires a firmware update and can be done in about 1 minute without disassembling the light, but requires special hardware and software.
Just to confirm, every light ordered through International Outdoors after July 19 is safe? I’m literally about to pay for my order, and just want to double check.
Just joined this thread so don’t hate me (much) if this question was asked somewhere like 30 pages before…
Is 219C 5000K option 90CRI like solo emitters on Hanks site or it’s something else?
anyone tried flashing their d4v2? Anyone seen or know why I get this error? A fellow BLF’s was helping out but thought I’d post here for increased d4v2 owner visibility.
Has anybody had any luck putting the V2 stainless bezel on a V1 light?
I have a V1 and V2. The aluminum bezels can be easily swapped between the two. Stainless bezel threads onto the V2 easily, but won’t thread onto the V1. It goes on approx 1 turn and then stops, as if it’s the wrong thread pitch. I don’t think the threads are different though because the aluminum bezels interchange without an issue.
I have been carrying the D4V2 with raised switch ring in my front pants pocket all day long for one week now and just got my first spontaneous activation. This is much better than the V1 (with flat switch ring) that went nuclear twice in the first day. The max ramp of my V2 was set at 450 lumen so when I felt it warming up there was plenty time to notice and switch it off again.
This is what else is in the pocket: