Where is a headlamp/flashlight runtime graph database at?

[sponge_bob_128]

I may be losing my internet search skills but I am having trouble finding runtime graphs. I only have Princeton Tec headlamps (Apex, Vizz Industrial, Quad, Vizz) and white Eneloops. Also have SureFire and Maglite handhelds. The application is mountain nighttime hiking (to beat heat) where you need as much light as possible for many hours. I am now forced to use ceilingbounce with an old phone :-(.

 

[bluflaam777]

doesn't the website have runtimes on their site?

 

[sponge_bob_128]

Runtime GRAPHS. Figuring out which setting to use for a sweet spot for light vs runtime is confusing especially with my current two gotos: the Apex and Vizz Industrial which have a manual variable setting option (holding button). My Apex's Spot "medium" setting is too high and "low" lasts a very long time (regulated/constant). So you can mess with the variable controls to get between "medium" and "low" but then it is not easily repeatable and the runtime extension is unknown. The Vizz industrial also has High/Default/Low Spot and High/Default/Low Flood and in-between Also Eneloops seem to have a more abrupt voltage drop when nearing empty than alkalines.

 

[bluflaam777]

Oh I see...no I don't.
Maybe I'm misunderstanding here. forgive me if I am, but there seems to be enough unknown variables for an accurate 'graph' to be made.
You can always send them an email with what you have to work with and ask them specific Qs. It would probably be your best bet IMO.

 

[sponge_bob_128]

Yeah, its too late, I have already gone the down rabbit hole of my own runtime testing via the "ceilingbounce" app (makes graphs). So other user graphs with Eneloops (NiMH) would now only be for verification of what I am seeing. For example, I believe Princeton Tec has an obvious (copy and paste) error between the Vizz and Vizz Industrial runtime data in both the website and the manuals. The Vizz only has 2 white leds (2 red) and the Vizz Industrial has 4 for flood mode. The Vizz Industrial has 1.4-1.5X the stated range which is roughly 2X the power (twice the LEDs). But both have a spec for 6 Hours of regulated runtime. Should probably put a post in Reviews after I complete all my test graphs.

 

[bluflaam777]

Yeah, if you're looking to proof your own tests vs theirs it would be best to ask them for data.
You'll have your own data to work with regardless.

 

[desert.snake]

Yeah, its too late, I have already gone the down rabbit hole of my own runtime testing via the "ceilingbounce" app (makes graphs). So other user graphs with Eneloops (NiMH) would now only be for verification of what I am seeing. For example, I believe Princeton Tec has an obvious (copy and paste) error between the Vizz and Vizz Industrial runtime data in both the website and the manuals. The Vizz only has 2 white leds (2 red) and the Vizz Industrial has 4 for flood mode. The Vizz Industrial has 1.4-1.5X the stated range which is roughly 2X the power (twice the LEDs). But both have a spec for 6 Hours of regulated runtime. Should probably put a post in Reviews after I complete all my test graphs.

I don't even know what kind of lanterns these are, but an internet search showed that they look very similar to Petzl. Remember that they can claim operating time according to the FL1 standard, which means something like this (picture from Petzl)

But a Petzl is a Petzl, right here looking through Princetontec website, I did not find any mention of the FL1 standard, so the statements about working hours may not be based on standards, but on some personal ideas that we do not know

These formulations also confuse me a little. If we draw analogies, I suppose it is something like this, but I think only your testing can answer for sure

I'm interested to see your graphs when they are finished

 

[sponge_bob_128]

The Princeton Tec Apex manual/website has ANSI FL1 runtimes but the Vizz manuals/website use the ridiculous 0.25 lux at 2 meters "standard" which means that a 2m tall man could maybe check that his shoelaces are still tied by looking down. The only good data is the regulated runtimes (flood mode only) for the Vizz and Vizz Industrial manuals. The Apex's regulation (much higher power headlamp: 4XAA vs 3XAAA) looks much more advanced than the Vizz from my graphs.

 

[desert.snake]

The Princeton Tec Apex manual/website has ANSI FL1 runtimes but the Vizz manuals/website use the ridiculous 0.25 lux at 2 meters "standard" which means that a 2m tall man could maybe check that his shoelaces are still tied by looking down. The only good data is the regulated runtimes (flood mode only) for the Vizz and Vizz Industrial manuals. The Apex's regulation (much higher power headlamp: 4XAA vs 3XAAA) looks much more advanced than the Vizz from my graphs.

Great news, interesting to see your graph from reality

 

[sponge_bob_128]

Graphs for 4 headlamps posted in "Flashlight Reviews" section.