Fenix LR35R detailed review and performance testing.
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- čas přidán 9. 07. 2024
- In this full video review of the Fenix LR35R, find out if the makers' claim of 10,000 lumens from a light smaller than the TK35 is really possible.
This video also include behind the scenes footage of the testing process and troubleshooting some unexpected results for the output figures.
There will be an accompanying static review on tacticalreviews.co.uk/ with key graphs and measurements.
NOTES: Measurement of parasitic drain is shown, and this is the 'wasted' standby current used by the control circuit when the light is off.
INDEX:
00:00-01:20 Intro
01:20-07:31 Looking over the LR35R
07:31-13:28 Measuring parasitic drain
13:28-19:56 Troubleshooting - comparing cells
19:56-20:43 Troubleshooting - benchmark measurements for sensor modification
20:43-24:28 Modifying the integrating sphere
24:28-26:02 Results - USB charging
26:02-26:57 Results - Thermal imaging
26:57-30:40 Results - Runtime Graphs
30:40-32:11 Results - Beam shots
32:11-33:35 Summary and outtro
Have had my LR35R for just over a week now, and it's great. I even lit a firework fuse with it! It really puts out that much light.
Well, there is a test I'm not going to try! It might light the fuse a lot closer to the 'bang' than would be healthy.
However, melting things and lighting paper might be slightly less hazardous and worth a try.
I still have a hole in my sofa from a Fenix headlamp that burnt the fabric.
..
I have the light for 6 weeks now.
What a powerful light!
Impressive!
I love it.
would u recommend it for $159
How is the light working now that you've had it for a while? Thanks
@@juanargueta5988 for that deal? Definitely
Outstanding work.
wow great review love it！
Wish I could find a better case / holster for mine.
At 27:05 What does "Less Cooling" mean?
Does that mean you left the light on a stand or on your desk (pointing up) and measured the time without introducing any kind of extra cooling?
I'm looking to buy this light but I need to know what's the real world max lumin @ Turbo. If I were to buy this light and take it outside at night and leave it on my brick ledge or my concrete patio table, is that "Less Cooling" graph the one that most likely to match my real world experience?
Cooling of various forms adds complexity to the discussion. Free standing, in still air, will provide the least cooling and the LR35R heats up very fast and gets too hot to touch.
Holding a light actually provides very good cooling thanks to your circulation, so holding the light is much better than leaving it standing on its own.
For safety and to get the best output I use a cooling fan to keep temperatures under control.
More cooling means less thermal regulation reducing the output.
Great video - did you actually measure the lumens or overlay the graph with a runtime test? I've read that it doesn't actually output 10k which is concerning. A drop off is expected - never getting there is not.
I have a DIY calibrated integrating sphere as shown in the video and the graphs are my actual measurements. The ANSI output is below 10,000lm, but it does go over 10,000 at switch on.
@@TacticalReviews thank you! Seems fairly standard in The Great Lumen War. Fundamentally a size and heat issue that steadily improves with each new model, but still has limitations. Leading to tech specs and claims like these. Little gray but it DOES technically put it out...even if only for .5sec. Love my Fenix lights, though.
I hate that.
I just bought a Nitecore TM06S and love it which is my first quality flashlight, my bro has a Fenix UC35 as his first quality light and looking to surprise him with the LR35R. The only problem I'm running into is that "1 hr on Turbo" for most flashlights I've looked into actually means "2-3 minutes on MAX lumin and 56 minutes step down". I think it's bullshit frankly and just want the real answer, not so much because it's something I want to know but because my bro is going to be needing it to preform at max lumens if need be at an extended time looking at property in a rural areas at night which can be dangerous. Honestly it's a safety issue for me and for my brother who's going to be using it.
I tested my TM06S at max lumens and it lasted a little over 9 minutes at Turbo and then started to step down. I was honestly surprised as I thought it was going to be around 4 maybe 5 minutes tops, but at it was actually timed 9:19 at max lumens SOLID, with no slow ramp down or fluctuations in a lukewarm room (window was open all day and it was warm in my room and it had _just_ started to cool down at night around 9 pm here). I was actually impressed considering some quality name brand flashlight sometimes only last from 5 to 20 seconds at max lumens Turbo even tho they state "1 hour + on Turbo" which I think is akin to pissing on my back and telling me it's raining.
If I'm reading the chart Tactical Reviews put up right (paused at 27:02) it seems to be over 4k lumens for the first 2 minutes, then under 4000 lumens for the next 15 minutes, and then between 4000 and 4500 lumens for the next 15 minutes after that. The problem is if I'm being forced to pay the premium price BECAUSE it's 10'000 lumens (on paper) when it ONLY reaches 10k lumens for a couple of seconds at best.
Have you ran your own test to see how long Turbo is actually activated for? I'd like to know.
@@dsandoval9396 Fenix atleast have charts that shows the output levels over time, they are the only ones that do that from what I know
Hi Bro , can i use the normal unprotected 21700 in it ?
Although I can't say 100%, everything I've seen during testing suggests you should be fine as the light certainly appears to have cell management built in.
شكرا للمترجم
tajam bersinar
Hi can you use the 21700 5000mah?
Fenix say yes, quoting directly "LR35R supports 21700 rechargeable Li-ion battery.". I cannot directly test this for you to confirm 100%. Maybe another viewer can confirm if they have used the 5000mAh 21700
Thanks for the review. I own the Astrolux MF01S. Do you think the Fenix offers significantly more or is different enough to have as well as the Astrolux? The Astrolux is short and stubby (but heavy with 4x 18650s) and essentially a 15,000 lm big-spot spotlight with just enough flood and uses the Anduril interface, which is so familiar to me now.
Appreciate your thoughts!
The Astrolux is a budget light, and I'd certainly be curious to see if it really manages the stated lm output. It doesn't seem to have built in USB charging, and the 4x18650 does make it a chunky body. Ultimately this is all said without any actual hands on of the MF01S, so I can't really judge.
Hello so how long does it shine at 10,000 lumens before it starts to dim?
For the full review I ran actual output runtime tests and plotted graphs. If you take a look at the full review at tacticalreviews.co.uk/?p=9482 and go to the output section you will see the way the output drops from switch on. By 2m30s from switch on it is around 6000lm - the graph says it all.
@@TacticalReviews that is, if I understand the graphics correctly, in Turbo mode it shines with 10000lumen for about 10-20sec (there is a division every 2 minutes) and then it drops sharply to 6000-5000lumen.
@@marcinwerner8563 At switch on the LR35R measured 10297lm, and by the ANSI 30s measurement it was 9370, and it does dive down to the 4700lm level it stays at from 3 mins to about 30 mins. Typical for high outputs to drop. Maintaining maximum outputs requires big lights with big batteries.
@@TacticalReviews OK I understand. thanks for your comprehensive answer.
@@TacticalReviews I love mine people ask that question how long does it sustain 10,000 lm. I think the light is a great little light considering its size. It’s a great little light. Any light a 90.2 are going to heat up and drop in lumens. I have a lot of heavy hitters from my K 75 my X 75/3×21D/30 GT/MK 38 MK 13ll special edition, all of these lights drop in lumens it’s the nature of the beast. People think it’s a marketing scam, which may be it’s true on some of the lights, but this happens to be a powerhouse and turbo should only be used for short burst. I think you did a great job on your production and thank you for showing this product.
Great Work my question is (Why do we need that much lumen's ) I see a need for 1000 to 2000 flood with little throw or 800 to 2000 throw with a wide spill .
As it happens, my most used output level on any light I have is 0.015lm, so yes, why 10,000? For me one of the main reasons for the big number lumen outputs are much like those motorbikes or cars that will go 200mph. If the light is engineered to be capable of an upper limit of 10,000 lumens, its performance at 3000lm will be rock solid. If that same light were only engineered to go to 3000lm, it may be over stressed when using 3000lm.
And then there is the fact that when you have that car or bike that can go 200mph, sometimes it is just fun to put your foot down (where it is safe and legal) and make the most of it.
My need for high-output lights is for security while walking late at night... I might never have enough lumens for that use, but at least the LR35R comes a wee bit close. 👍
I feel like I have a PHD about this flash light. 🧐
Where's the graph with no active cooling? As I don't use a cooling fan when I actually use my flashlights.
Very true we don't use them with active cooling, but I have to carry out elongated tests and I'm protecting my test equipment from damage. There is a trace in one graph with the 'lower cooling' and this shows the thermal regulation kicking in. the fan used for that run is much less powerful and might be equivalent to using it on a cold night with your hand also acting as a heat sink.
what the run time is correct
The graphs are shown with the trace stopping at the ANSI cut-off.
👏👏👏👏🏆🥇🇪🇦🇪🇦
21700 4000 mah have 35 amp with a boost to 50 amps, even old ones are superior to 18650s.
Alll tht testing footage....interesting I guess for "torch nerds" to see....do you work for a battery company? Flashlight company? Why would you have t those testing equipments?
I was hoping to hear how long this light stays at 10k lumens ....or there abouts...before it steps down....10 seconds? 20s? .
If you follow the link in the description of the video you will find the full review on my website with runtime graphs wit the information you are asking about.
I am a 'flashaholic' enthusiast and trained as an engineer, so have made and gathered equipment to take measurements to allow me to understand how these lights perform. Amateur enthusiast 🙂