Measure Like a Pro! (TKLamp Flashlight Tester)
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- Опубліковано 4 лип 2024
- Now you can buy a laboratory calibrated integrating sphere for accurate, repeatable flashlight output and candela testing thanks to the TKLamp Flashlight Tester. I review it in this video.
TKLamp (non-affiliate link): www.tklamp.co/tklamp-flashlig...
🔥 Comprehensive List of Flashlight Recommendations: bit.ly/LightsList
🌎 Lumencraft Shop: lumencraft.com/
☑️ Lumencraft products on Amazon: www.amazon.com/shop/mattsmith
Linked ABOVE is a detailed list of lights in multiple categories. Below is the "short list", of a few top contenders. If you are shopping at Neals Gadgets, the coupon codes on the right specifically for that light, are typically the highest value. For all other purchases at NG use code: Lumencraft15 for 15% off your shopping cart.
Brightest Overall
(Large) BLF GT4 www.nealsgadgets.com/products... Coupon: ASGT4
(Large) BLF GT4 with Batteries/Charger
www.nealsgadgets.com/products... Coupon: ASGT5
(Large) BLF GT94 www.nealsgadgets.com/products... Coupon: ASGT94
Everyday Carry
(Brightest) Lumintop FW3A www.nealsgadgets.com/products... Coupon: ASFW3A
(Budget) Wowtac A1 amzn.to/2zuERKh
(Budget) Nicron N7 amzn.to/2OaTs1K
(Budget) Sofirn SC31 Pro amzn.to/3aYRwFn
Brightest Medium Size
Fireflies E07 www.nealsgadgets.com/collecti... Coupon: Lumencraft15 .
FW21 Pro www.nealsgadgets.com/collecti... Coupon: ASFW3A
Best Throwers (Non Laser)
(Keychain) Lumintop GT Nano www.nealsgadgets.com/products... Coupon: ND25F
(Small) Lumintop GT Micro www.nealsgadgets.com/products... Coupon: GTMICRO
(Small) Lumintop GT Mini www.nealsgadgets.com/products... Coupon: ASFW3A
(Medium) NI40 SBT90.2 www.nealsgadgets.com/products... Coupon: ASF
(Medium) Convoy L6 lumencraft.com/convoy-flashli...
(Large) BLF GT www.nealsgadgets.com/products... Coupon: ASFW3A
(Large) BLF GT 70
www.nealsgadgets.com/collecti... Coupon: ASFW3A
(Large) BLF GT 90 www.nealsgadgets.com/products... Coupon: ASGT90
(Budget) Convoy C8+ lumencraft.com/convoy-flashli...
Best Throwers White LASER Flashlights (LEP)
(Small) Lumintop Thor I www.nealsgadgets.com/collecti...
(Small) Weltool W3 Pro www.nealsgadgets.com/collecti...
(Medium) Weltool W4 www.nealsgadgets.com/collecti...
(Medium) Mateminco FW1 www.nealsgadgets.com/collecti...
Pop Can Lights
Acebeam X80 GT amzn.to/36LDsew
Mateminco MT18S www.nealsgadgets.com/products...
Astrolux MF01 ban.ggood.vip/I9Yg Coupon: BGAM1X2
Fireflies R0T66
www.nealsgadgets.com/collecti...
Best Tactical
Acebeam L16 amzn.to/2o2bCZx
Headlamp
(Budget) Wowtac A2 (my most used) amzn.to/3erVUex
(Brightest) Lumintop HL3A www.nealsgadgets.com/products... Coupon: ASFW3A
TIMESTAMPS:
00:00 Intro
01:00 Why This Product is Important
01:55 Flashlight Tester Overview
02:38 How to Use the TKLamp
04:00 More Advanced Features
04:40 Pricing
05:07 Limitations
07:00 Durability
08:17 I Like it.
Music used in this video:
"Water Please" - Text Me Records/GrandBankss
"Smokey Eye" - Cheel
"The High Line" - Causmic - Наука та технологія
This would be really handy for my reviews. I notice they also have other models that plot data as well... Thanks for the video.
The cost of an integrating sphere come mostly from the nature of surface material, as you mentioned in the video, and from the precision of its machining. When you go in single lumen - sublumen territory there is a series of different phenomena like scattering, re-emission, photoluminescence, etc. - which are not linear along the considered spectrum, that goes from the far infrared to high ultraviolet, and the composition of the ceramics (properly doped to achieve linearity) is a trade secret.
The £400 price tag may be considered expensive, but it is peanuts for a light integrating sphere. I understand they avoided the use of exotic reflective materials to sell it for so little, but the limitation of this integrating sphere is that it cannot operate with the high temperatures induced by 10K+ flashlights.
Do the manufacturer provide NIST traceability? If yes, it would make sense for other reviewers to adopt it; 10k+ lumens flashlights are a very small minority of the flashlights sold.
I avoid to watch those flashlight reviewers which have adopted some measuring contraptions using a polystyrene box or a drain pipe. Sending a flashlight to a NIST laboratory and then using it to calibrate their light integrating drain pipe is an absolute mock of the science and the flashlight hobby, makes me so upset that I can't keep watching. The calibration requires a frequency sweeping source just to start, not a "NIST flashlight" - the errors are in the order of 50% as the Led emitters shift from 6300 to 6500 °K while the current increase and the phosphors heat up. Those mousetraps are a preposterous proposition to anyone who has read the first pages of a book about metrology, and demean all flashlight hobbyists who know something about the science of measurements.
This low priced "lumen meter" may solve the visual offence of the mozzarella boxes appearing in flashlight reviews, but only if the calibration is traceable.
Thank you for your dedication to the High Muse of light. I have your same fascination for torches and lights, but at the same time I can't dedicate much resources to what in the end is a bright hobby.
Regards ,
Anthony
Still love that my favorite 2 flashlight youtubers teamed up.
Awesome looking test equipment.
I'd love to see a database of test results, like you have for your recommended list.
Absolutely priceless data for sure.
If, say, you were able to find another box that was a bit more durable, does it look like the insides would be easily transferable to a different box?
It does not seem so.
Great video, thanks for sharing.
The maximum lumen limit is not an issue because lumens and candela behave linearly. You can just measure the lumens on a dimmer mode and compare the candela values between the measured modes and turbo. Increase measurement distance if the lux meter tops out.
Your website is out of products such as led driver for SFT40 or 70
I went and checked out their web page, I didn't see the price listed on the landing page, for how I use one of these flashlights, I doubt this product will end up in my inventory. Thanks for sharing this with us.
It costs 400 dollars. Its a nice attempt but needs refining.
The aperture system should have been a variably adjustable iris like on a camera lens/the Stargate
That would be cool, but incredibly difficult to machine, and would be less accurate than a solid piece.
@@ethan-lumencraft- mm fair - especially being coated with that fragile material
What's the consistency like? Chalk/gypsum? Or am I way off?
I think it was made for people who review the fake claims on Amazon of high lumen lights. Torque Test Channel just did one of 8 lights up to 900,000 lumens for cheap, but most turned out to be around 800-1200. The brightest one was a Wurkkos that advertised an honest 12,000, a 3 cell pop can (I forgot which) at $129
Yes, Torque Test Channel was the first to show off what was a prototype version of this sphere.
@@ethan-lumencraft- OH. So the Wurkkos might have maxed it out.
i thought it'd be more expensive than it is
Yeah, $400 is a really great price for a calibrated sphere like this!
What happened to Matt?
Guys, I love collecting flashlights, but is this an ongoing hobby? What I mean is, does the LED have a lifespan if you don’t turn it on, just leave it on the shelf, or not?
I have flashlights with Luxeon I and Seoul P4 LEDs which still work fine after twenty years.
My first generation power LED flashlights emitted 15 Lumens, (Surefire L1 with a Luxeon I bin P4, purple colour), then Philips invented the flip LED (K2), doubling the lumens for the same current, so the various flashlights of the time all emitted 200-300 lumens. I have various expensive Fenix and Jetbeams from that time.
Then come the third wave, and the brightness improved ten times. My current collection of lights can all get to 3000-4000 lumens (peak) with one 21700 battery.
This to say that, along the years, the LEDs do not degrade, but obsolesce. Paid £200 for a 250 lumens Jetbeam thrower with magnetic ring control, which is worth nothing today.
If you are looking for an heirloom purchase, look away from flashlight, and orient yourself toward mechanical Swiss wristwatchs.
If I would have bought some Swiss watches instead of flashlights, I would own a small fortune today, instead of piles of scrap aluminium...
If it's a decent one like Cree or Luminus, and you use it for an hour a day, every day it will last about 1,369 years. Lifespan of most LEDs is 50,000-100,000 hours and the two mentioned over 500,000 hours or 57 years if you never turned it off.
@@BariumCobaltNitrog3n Thank you, this helps me a lot
@@rayoflight62 Thank you for the detailed response. I missed the fact that technology develops the LED and the most powerful flashlight in the 1990s. You can now get one more powerful than that at a cheap price. It seems that it is an impermanent hobby.
What happened with matt???? Is this his son or someone he works with?????
Thats Ethan, hes the guy from the luxwad channel. Looks they they teamed up a year ago or so, which is awesome because luxwad did great work.
audio is noisy af
Unfortuntaley yes, my microphone was positioned poorly