JasonWW
(JasonWW)
May 8, 2021, 7:48am
81
How i measure a lights distance using a HS1010A lux meter:
JasonWW:
Itâs easy. The HS1010A is auto ranging. Just turn it on like normal.
You need to mark off 10 meters (32â 10â), or 5m (16â 5â) if you donât have room. Iâve got a wall that I measure from. I add 1â to account for the lux meter thickness then mark the distance with tape. I line up the led of the light with this mark.
Iâm indoor, so I make note of the meters ambient light reading when placed on the wall and subtract that from the total reading. Usually itâs such a low reading it has no effect on the measured output.
Iâll turn the light on a low level and move the sensor around in the hot spot to find where itâs brightest. Then Iâll go and turn it on turbo. Iâll hunt around for the brightest part of the hot spot again and use that reading after its been on about 30 seconds.
So you write down this lux reading. If itâs a 10m reading, multiply by 100 or just add two zeros to the end.
If itâs a 5 meter reading, multiply it by 25.
This gives us the âcalculatedâ candela at 1 meter.
To convert this to meters, we multiply it by 4 then find the square root.
Iâll use my GT mini as an example since it should be in the neighborhood of the FT03. At about 30 seconds I measured 1,480 lux at 10 meters.
1,480 x 100 = 148,000 candela or 148kcd
For distance: 148,000 x 4 = 592,000
The square root of 592,000 is 769. This is 769 meters.
Here is a video by VOB.
https://youtu.be/gsBl0syUxpk
https://youtu.be/gsBl0syUxpk
Note that there is a typo at 4:30 (843,000 should be 84,300) but it does not effect the end result.
Hey thanks! I was googling and came across an article saying: â A 10 mW blue laser pointer cost $700 compared to the price of the equivalent 15 mW green laser pointer that cost $100.â
Article Source: Why Blue Laser Pointers Are Much More Expensive Than Green Laser Pointers
My 6 watt blue was only a few hundred $ a couple of years ago. Canât imagine what weâll have in another 10 to 15 years
The WW2 Carbon-Arc Searchlights and the AN-TVS3 Military/NASA Searchlights had about this much throw. They put every other searchlight to shame.
Nice! I wonder if I could bet one of those that runs off a 21700? Haha
Xandre
(Xandre)
June 22, 2021, 12:50pm
85
We
the ANSMAXABEAM team
are trying to get No 1.
We bought this Fresnel
and we will see if it rocksâŠ
Regards Xandre
PS This Fresnel is the only one (big sice)
which so a short focal length -
dave1010
(dave1010)
August 13, 2021, 7:24am
86
I made a graph of lumens vs throw of some of the brightest / furthest throwing production flashlights that may be of interest.
Enderman, Microfire have a couple of flashlights you may want to add:
Note: the chart has a couple of mistakes that Iâll fix later (X axis and Manker).
richbuff
(richbuff)
August 13, 2021, 1:22am
87
Thank you for your lumens vs throw graph. Bookmarked! My favorites are, in chronological order: X45, X65, K75, R90TS, MS18, MF05/MT90Plus, HK90 and BLF GT94. Soon, X50.
Every fan of large power flooders and dedicated throwers should see your chart!
TermsakC
(TermsakC)
August 13, 2021, 1:59am
88
DAVE1010, Thanks for your highly informative postings at your reviews web page.
After going through your summary of 90.2 flashlights, I finally decided on buying one Convoy 4X18A 90.2.
I am convinced that the 90.2 emitter needs more than one battery cell to properly power it up to its full potential. And the price of this particular 90.2 Convoy is affordable for me.
BTW: Has anyone done reviews of flashlights selling for over US$1,000 each? I just found on Sure Fireâs website, the UDR Dominator is priced at US$1,370 â even though it promises only 2,400 lumens over a distance of 900 metres.
Soooo⊠if mine ends up being the size of a 55-gallon drum, but I throw a car battery and power inverter in the bottom, plug the CC power supply into that, and add a handle⊠then itâs flashlight? Cool. Iâm gonna have the worldâs heaviest âflashlightâ.
richbuff
(richbuff)
August 13, 2021, 3:57am
90
Dr scott Diabolical - Evil Genius:
Soooo⊠if mine ends up being the size of a 55-gallon drum, but I throw a car battery and power inverter in the bottom, plug the CC power supply into that, and add a handle⊠then itâs flashlight? Cool. Iâm gonna have the worldâs heaviest âflashlightâ.
No, I think that would be a bit much to be a flashlight. BLF GT94 is a much better combination of size, runtime, power and throw. And of course, there are smaller dedicated thrower flashlights, too, for smaller light needs.
JasonWW
(JasonWW)
August 13, 2021, 4:06am
91
Dr scott Diabolical - Evil Genius:
Soooo⊠if mine ends up being the size of a 55-gallon drum, but I throw a car battery and power inverter in the bottom, plug the CC power supply into that, and add a handle⊠then itâs flashlight? Cool. Iâm gonna have the worldâs heaviest âflashlightâ.
That sounds more like a searchlight than a flashlight.
Xandre
(Xandre)
November 22, 2021, 6:13am
92
The results are not so welcome
now we are trying LEP
We bought 3 LEP Moduls from Ali
and do some tests.
It is written in German,
but datas are international:
Thanks @ sma and Andi
Regards Xandre
Regards Xandre
Xandre
(Xandre)
January 16, 2022, 6:36am
93
The new benchmark
Team Ansmaxabeam have now a lot to do to reach this numbers âŠ
Regards Xandre
Yokiamy
(Yokiamy)
January 16, 2022, 7:03am
94
Portable you say ?
Fantastic mod, i like it!
We need more of this on BLF
Enderman
(Enderman)
January 16, 2022, 7:42am
95
Very cool I will definitely have to add that.
It will make everything else almost invisible on the graph!
Xandre
(Xandre)
August 8, 2022, 3:23am
96
We ve got a new result
with SBT 90 and Wavien
600 mm Fresnel 700 Focal Lenght
58 Mio Lux
Wir bauen deshalb jetzt - abwechslungshalber und zum Durchschnaufen - erstmal auf COB um :rofl: und dann sehen wir weiter.
Das wird dann so ausschauen, grunz,
... aber der Treiber dazu dĂŒmpelt noch im Chinaurlaub. Und es wird natĂŒrlich ein...
Some more beamshots
and a 300 watt COB âThrowerâ added
Regards Xandre
Yokiamy
(Yokiamy)
August 10, 2022, 5:55am
97
Holy cow!
I really love those pictures and the result of 58 MCd, wow! just wow!
Wow, those photos are crazy
Xandre
(Xandre)
November 15, 2022, 5:31am
99
Thanks
We are going to try it with Osram P-VIP 420/1.0
Regards Xandre