knucklegary
Flashlight Enthusiast
Lucifer Morningstar was also the name of a character in a tv series about the devil's not always dirty deeds
Need 800 lumens for 8hr
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gunspease
Newly Enlightened
Has your headlamp arrived?
My headlamp arrived seven days after receiving confirmation that my payment went through. The light was well packed against damage in transit, and worked flawlessly. I've been using it regularly since then and could not be happier with it's performance. The output levels are intelligently selected, and the 4500K color temp appears to be sitting exactly on the black body line, without any tint deviation toward the green or magenta parts of the spectrum.
The beam profile is well suited to my uses on night hikes in woodland environments. I'd buy this light again. I'll probably also get one of the higher output Lucifer lights before my next trip into the unburnt parts of the Sierra Nevada range.
Yes, these lights are that good
Get one. You won't be disappointed.
The beam profile is well suited to my uses on night hikes in woodland environments. I'd buy this light again. I'll probably also get one of the higher output Lucifer lights before my next trip into the unburnt parts of the Sierra Nevada range.
Yes, these lights are that good
Get one. You won't be disappointed.
Just an anecdote regarding Lucifer shipping. Ordered another s2x(+) as a backup/ waist light experiment (my original s2x is still going strong). Placed order the afternoon of August 28th, so after hours in Europe. On my doorstep in California on September 5th, so 8 days, one of which didn't count. No add-on tariffs. (My credit card issuer did glitch at me purchasing in Europe, but that's just them.)
tonkem
Flashlight Enthusiast
So no step down on the max output? Has anyone verified that claim by the manufacturer?
I can't speak to the max output duration; most of my use is at lower output levels with gratifyingly long runtimes. That noted, the "medium" settings maintain the light levels for multiple hours without dimming.
S2X specific... I haven't used a sphere, and should note that I'm not on supernova setting much, but my perception is that it doesn't ramp down. I'll do some slightly more science-y testing next week.
sirpetr
Newly Enlightened
Feel free to test the overheating, but I will write to you, as a manufacturer, truthfully, how it is. All (our) headlamps can overheat, it's simply a physical principle when even the most efficient LEDs burn 1/3 of the energy into heat, 2/3 of the energy goes into light.
Even though we have an aluminum body with the largest fins you will ever find on any headlamp, and we have a PCB with direct copper connection to the LEDs, 92-95% electronic efficiency and the most efficient LEDs today (Cree XP-L2 W3 bin), the headlamps can overheat. I just wanted to write that this is an inevitable physical consequence. For some headlamps, the ribbing of the headlamp would have to be 10 times larger to cool down at room temperature (20-25°C = 68.0°F - 77.0°F) without any movement. Headlamps up to 300lm are cooled even in the plastic body. Just a general explanation.
How we have it on our headlamps? All our headlamps have a thermistor and monitor the temperature of the headlamp, when the temperature is exceeded (50-60C = hot to the touch), the headlamp will reduce the mode to a lower one. The performance does not decrease gradually, but switches to a lower mode. This overheating can theoretically occur only in the two highest modes, all other modes can be permanently cooled even without movement at all temperatures.
Whether the headlamp cools permanently on the two highest modes depends on the ambient temperature, movement speed, and it also applies that the more powerful the model (800lm - 1900lm - 3500lm - 8000lm), the more demanding the cooling is - the faster one has to move to cool down.
E.g. Lucifer Z2Mini cools down for tens of minutes at the highest output (800lm) without any movement. The M6+ cools permanently without movement even to the second highest mode of 960lm, to cool down the highest mode of 1900lm you need to walk at least. The S2X+ is very similar to the M6+. When we tested the L+, at the second highest power, it cooled down for 12.5 minutes in the room without moving before it overheated, if it was possible to walk, then I think it would cool down permanently. We also tested Lucifer X placed outside on the ground (without movement) at a temperature of 4°C, so the second highest mode of 2400lm cooled down permanently. In any case, the new Lucifer X2 will cool even better, because we will use more efficient LEDs there, which we already have on other models.
By the way, I have yet to see another 8000lm headlamp that can cool down permanently while running. AFAIK only our Lucifer ULTRA can do that. All others either need a fan, faster movement, or don't have that much real power (their light output drops fast during discharge or lumens are overrated).
Even though we have an aluminum body with the largest fins you will ever find on any headlamp, and we have a PCB with direct copper connection to the LEDs, 92-95% electronic efficiency and the most efficient LEDs today (Cree XP-L2 W3 bin), the headlamps can overheat. I just wanted to write that this is an inevitable physical consequence. For some headlamps, the ribbing of the headlamp would have to be 10 times larger to cool down at room temperature (20-25°C = 68.0°F - 77.0°F) without any movement. Headlamps up to 300lm are cooled even in the plastic body. Just a general explanation.
How we have it on our headlamps? All our headlamps have a thermistor and monitor the temperature of the headlamp, when the temperature is exceeded (50-60C = hot to the touch), the headlamp will reduce the mode to a lower one. The performance does not decrease gradually, but switches to a lower mode. This overheating can theoretically occur only in the two highest modes, all other modes can be permanently cooled even without movement at all temperatures.
Whether the headlamp cools permanently on the two highest modes depends on the ambient temperature, movement speed, and it also applies that the more powerful the model (800lm - 1900lm - 3500lm - 8000lm), the more demanding the cooling is - the faster one has to move to cool down.
E.g. Lucifer Z2Mini cools down for tens of minutes at the highest output (800lm) without any movement. The M6+ cools permanently without movement even to the second highest mode of 960lm, to cool down the highest mode of 1900lm you need to walk at least. The S2X+ is very similar to the M6+. When we tested the L+, at the second highest power, it cooled down for 12.5 minutes in the room without moving before it overheated, if it was possible to walk, then I think it would cool down permanently. We also tested Lucifer X placed outside on the ground (without movement) at a temperature of 4°C, so the second highest mode of 2400lm cooled down permanently. In any case, the new Lucifer X2 will cool even better, because we will use more efficient LEDs there, which we already have on other models.
By the way, I have yet to see another 8000lm headlamp that can cool down permanently while running. AFAIK only our Lucifer ULTRA can do that. All others either need a fan, faster movement, or don't have that much real power (their light output drops fast during discharge or lumens are overrated).
Maybe you'll find what you're looking for with this French company : STOOTS
Page comparatif lampes frontales tableau
www.stootsconcept.fr
OPALO 3 / 400 lumens / 7 hours / 60 meters
BICK
sirpetr
Newly Enlightened
Constant 400lm/7h from one 3350mAh (12Wh) battery is not possible. Everybody can make the math. It could be runtime based on ANSI/FL1, but not constant like its advertised.
I have trouble turning lumens into watts.
To the OP, it sounds like you need a 21700 or 26650 light with a couple of reloads.
Do you really run your light on high mode for almost the entire time that you're working?
sirpetr
Newly Enlightened
I have written here math calculations in different threads before. You must account for electronic conversion losses (neither conversion is 100% efficient), optic losses (efficiency can be between 75-92%) and lower efficiency because of higher temperature (although 400lm shouldnt have high working temperature). There are some things that you must estimate (or maybe many of them), but even when taking the best possible values, you wont get that runtime and 400lm constant lumen output OTF. If it was just 5% off I wouldnt write anything.
Either 21700 5000mAh or maybe even 18650 4000mAh can do that, although 18650 will be probably very close.
FIY 18650 li-ions with 4000mAh are real today. I measured one specific brand few months ago and its spot on. No general assumption here, chinese manufacturers overrated their capacities a lot in the past and are doing it also today.
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I did find on google, a milwaukee headlamp with a remote battery pack, but it only goes on the back of your head. Maybe it could be modified to a belt battery pack with more amp hours.
