acebeam WL20 - 2000m throw

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M4D M4X
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acebeam WL20 - 2000m throw

holy white laser Robin!

http://www.acebeam.com/wl20-throw-2000m

 

i hope they show it on IWA next month Wink

 

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Edited by: M4D M4X on 02/24/2018 - 03:14
Itsme
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and here’s hoping you or Neal will share a nice coupon with us for this

Enderman
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So the W10 but with a bigger lens, cool.
Can’t wait to buy one and transfer the LED to my optofire to get 10 million candela Big Smile

PS – it is 2000m, not 5000m

M4D M4X
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Enderman wrote:
So the W10 but with a bigger lens, cool. Can't wait to buy one and transfer the LED to my optofire to get 10 million candela Big Smile PS - it is 2000m, not 5000m

 

i asked them this morning to clarify and the just edited...

 

unfortunately to the lower value Sad

find all available items in this list

i launched my new blog - all deals for members without MAP B$ Wink

find a short description about my idea here

 

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M4D M4X
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and i was confirmed they show it to me in 2 weeks at our appointment Big Smile

find all available items in this list

i launched my new blog - all deals for members without MAP B$ Wink

find a short description about my idea here

 

if you want to buy a flashlight or battery for a better price: just send a mail - i will try to save you money!

desmondkun
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Laser? I don’t know much about laser. Is it safe?

Take care of your flashlight and your flashlight will take care of you.

Bungle88
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This sounds very Exciting looking forward to a hands on review Martin. Smile

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I want this but new funds are months away, giveaway?

Martin, make sure to do a beamshot or 2 at spot setting, during your appointment, white wall and outside.

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M4D M4X wrote:

and i was confirmed they show it to me in 2 weeks at our appointment Big Smile

Glückspilz!

zak.wilson
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This is laser phosphor excitation like some BMW headlights, not a coherent light source. It should be safe.

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Martin, check them both out.
Beam shots, we need beam shots.

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M4D M4X wrote:

and i was confirmed they show it to me in 2 weeks at our appointment Big Smile


Yeah they are showing them off at IWA 2018 in Germany, I already asked them, unfortunately I won’t be in europe Sad
March 9-12
No info yet on buying them though.

desmondkun wrote:
Laser? I don’t know much about laser. Is it safe?

Yeah, the laser doesn’t shine directly out of the light, it shines onto a phosphor and then turns into normal white light.
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Doing this with 500 lumens though this is literally going to be laser like. I can’t see this beam being particularly useable for much.

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The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.

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ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.

No, I don’t think it will beat the Maxabeam.

The Maxabeam has a large corona. It’s actually quite difficult to accurately determine the divergence. There is a somewhat smooth transition between spot and corona.

I believe it does around 2-3Mcd in the mid mode?

I did find values stated by an employee from Peakbeam over on CPF regarding the Maxabeam:
It produces a 2” (5,08cm) spot in a distance of 30m.

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ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.

The divergence only dictates the spot size, not how much lux it has.
I’m not sure how much candela the maxabeam has on normal mode, but I would estimate about half or a third of the max 12Mcd since 450 is about half of the max 1000lm, and the W20 only has 1Mcd.
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Cool… I have always wondered why they dont/cant make a white colored laser. Seems like there are other colors… but not white.

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As with LEDs, lasers are monochromatic. The effect is even stronger with lasers; where LEDs will have a dominant wavelength on a bell curve, lasers just produce the one wavelength. The spacing and alignment of the waves is consistent in space and time. Lasers are all about sameness.

White LEDs put some phosphor on top of a blue LED and use the blue light to stimulate the emission of other colors. On occasion, it’s a purple or UV LED. The WL20 uses a laser to excite a phosphor instead. The laser can probably excite a smaller area of phosphor at higher intensity, resulting in the crazy high ratio of candela to lumens.

What’s coming out of this thing is not white laser light. It’s phosphor light, similar to a white LED or fluorescent tube.

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I’ll be at IWA and swing by Acebeam’s booth. Although I fear it will not be for sale just then.

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Pöbel wrote:
I’ll be at IWA and swing by Acebeam’s booth. Although I fear it will not be for sale just then.

If you give them enough money it probably will Wink
But hey, please take some pictures of the lights!
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Im not willing to throw more money than needed on lights. Exhibitions like Iwa can be pretty hard on your purse if you are to weak to resist Smile

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Interesting light. And unlike their smaller W10, the WL20 is a zoomie. It should be more practical at short range, while the fixed-focus W10 is basically just a long range spotlight or a short-range pointer.

This one’s too expensive for me though, but I like the idea of white laser flashlights.

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The_Driver wrote:
ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.

No, I don’t think it will beat the Maxabeam.

The Maxabeam has a large corona. It’s actually quite difficult to accurately determine the divergence. There is a somewhat smooth transition between spot and corona.

I believe it does around 2-3Mcd in the mid mode?

I did find values stated by an employee from Peakbeam over on CPF regarding the Maxabeam:
It produces a 2” (5,08cm) spot in a distance of 30m.

Enderman wrote:
ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.
The divergence only dictates the spot size, not how much lux it has. I’m not sure how much candela the maxabeam has on normal mode, but I would estimate about half or a third of the max 12Mcd since 450 is about half of the max 1000lm, and the W20 only has 1Mcd.

You guys are probably right and after much research I found a site claiming the Maxabeam Gen 2 was 3 million lux on low, 4.5million on mid, and 6 million on high. But what I don’t understand is how you can have a dimmer light ( maxabeam is about 450 on mid mode) with a less focused beam (1 degree beam divergence) and it have three times the lux of a brighter light ( WL20 is 500 lumens) and a more focused beam(WL20 is 0.8 degree divergence). Unless I’m looking at things wrong the only thing I can come up with is the 500 lumen rating for the WL20 is the lumens at phosphor and not the emitted lumens, and the optical system is very inefficient, and the 450 lumens for the Maxabeam is the emitted lumens and the bulb lumens is higher.

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ImagioX1 wrote:

You guys are probably right and after much research I found a site claiming the Maxabeam Gen 2 was 3 million lux on low, 4.5million on mid, and 6 million on high. But what I don’t understand is how you can have a dimmer light ( maxabeam is about 450 on mid mode) with a less focused beam (1 degree beam divergence) and it have three times the lux of a brighter light ( WL20 is 500 lumens) and a more focused beam(WL20 is 0.8 degree divergence). Unless I’m looking at things wrong the only thing I can come up with is the 500 lumen rating for the WL20 is the lumens at phosphor and not the emitted lumens, and the optical system is very inefficient, and the 450 lumens for the Maxabeam is the emitted lumens and the bulb lumens is higher.

The distribution of lumens is not always even, you can have all the lumens evenly spread out, like this:

Or have them distributed differently, with more concentrated in the middle and less in the outer parts:

If both of the flashlights in the images above had the same divergence and lumens, the second one will have higher lux because it has more of the lumens concentrated in the center.

The maxabeam has a standard reflector which means the distance from the light source to the reflector surface varies from very short to very long, producing a spot that looks like the second image, with a high intensity in the center and then lower as it goes out.
The WL20 has an aspheric lens which produces a distribution more like the first image, since the distance from the light source to all points on the lens is pretty similar, producing an even distribution of light in the spot.

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ImagioX1 wrote:
The_Driver wrote:
ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.

No, I don’t think it will beat the Maxabeam.

The Maxabeam has a large corona. It’s actually quite difficult to accurately determine the divergence. There is a somewhat smooth transition between spot and corona.

I believe it does around 2-3Mcd in the mid mode?

I did find values stated by an employee from Peakbeam over on CPF regarding the Maxabeam:
It produces a 2” (5,08cm) spot in a distance of 30m.

Enderman wrote:
ImagioX1 wrote:
The Maxabeam on mid-mode is 450 lumens at 1 degree beam divergence. This W20 is 500 lumens at .8 degree beam divergence so its gonna be brighter and throw farther than a Maxabeam on mid mode.
The divergence only dictates the spot size, not how much lux it has. I’m not sure how much candela the maxabeam has on normal mode, but I would estimate about half or a third of the max 12Mcd since 450 is about half of the max 1000lm, and the W20 only has 1Mcd.

You guys are probably right and after much research I found a site claiming the Maxabeam Gen 2 was 3 million lux on low, 4.5million on mid, and 6 million on high.

Those values sound accurate. Why don’t you try calulating divergenace using the spot size I mentioned above.

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Enderman wrote:
ImagioX1 wrote:

You guys are probably right and after much research I found a site claiming the Maxabeam Gen 2 was 3 million lux on low, 4.5million on mid, and 6 million on high. But what I don’t understand is how you can have a dimmer light ( maxabeam is about 450 on mid mode) with a less focused beam (1 degree beam divergence) and it have three times the lux of a brighter light ( WL20 is 500 lumens) and a more focused beam(WL20 is 0.8 degree divergence). Unless I’m looking at things wrong the only thing I can come up with is the 500 lumen rating for the WL20 is the lumens at phosphor and not the emitted lumens, and the optical system is very inefficient, and the 450 lumens for the Maxabeam is the emitted lumens and the bulb lumens is higher.

The distribution of lumens is not always even, you can have all the lumens evenly spread out, like this:

Or have them distributed differently, with more concentrated in the middle and less in the outer parts:

If both of the flashlights in the images above had the same divergence and lumens, the second one will have higher lux because it has more of the lumens concentrated in the center.

The maxabeam has a standard reflector which means the distance from the light source to the reflector surface varies from very short to very long, producing a spot that looks like the second image, with a high intensity in the center and then lower as it goes out.
The WL20 has an aspheric lens which produces a distribution more like the first image, since the distance from the light source to all points on the lens is pretty similar, producing an even distribution of light in the spot.

Ahh those pictures demonstrate your point perfectly. I forgot about one being aspheric and the other utilizing a reflector, although the same affect can still happen apart from 2 different focusing mechanisms (or whatever the technical term is).

The_Driver wrote:

Those values sound accurate. Why don’t you try calulating divergenace using the spot size I mentioned above.

I don’t really see why its necessary considering Peak Beam gives the official beam divergence on their website :shrugs:
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ImagioX1 wrote:
The_Driver wrote:
Those values sound accurate. Why don't you try calulating divergenace using the spot size I mentioned above.

I don't really see why its necessary considering Peak Beam gives the official beam divergence on their website :shrugs:

I tried it myself. I got 0.133° for the central hotspot with maximum intensity. Their 1° value might be for the dimmer corona around the hotspot.

This is based on the following things:

Diameter of light source: 0.125mm (this is the diameter of the part of the arc with the highest luminance on the tip of the kathode)

Maximum focal length of reflector: 94mm

I calculated the spot size in different distances (using the thin lens equation) and then the divergance based on the size in two different distances and the distance between these two points (using the equation for beam divergance). Also note that while Peakbeam notes a spot size of 2in (5.2cm) in a distance of 30m, I only get 4cm at that distance with my calculation.

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I won’t be surprised if it beats some of the best throwers in eyeball tests even if the ANSI figure isn’t as high. It has fewer lumens, so it must be keeping more photons in the hotspot. If it practically has no spill, it’ll be an awfully fun light to play with. The $299 price is better than I expected too.

The low mode should be lower.

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Wow…

That WL20 is 1milion candela laser flashlight…

https://www.youtube.com/watch?v=g5qO-EI2HSY

Future is here and it seems my modding days are over cause I will not have any need to mod super throwers when led is clearly surpassed by laser.

I just hope laser module is capable of withstanding centerfire rifle recoil.

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luminarium iaculator wrote:
Wow…

That WL20 is 1milion candela laser flashlight…

https://www.youtube.com/watch?v=g5qO-EI2HSY

Future is here and it seems my modding days are over cause I will not have any need to mod super throwers when led is clearly surpassed by laser.

I just hope laser module is capable of withstanding centerfire rifle recoil.

I would wait before making conclusions. As you mention the robustness ist definitely something to keep in mind. The tint will be a bit different. We also don’t know how nice the light will be when defoccused. The spot might also be less even. Add to this the increased expense.

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Are the W10 / WL20 really focussable?

The blue /cyan point in the video of the WL20 beam (the W10 has a nice white spot) looks weird. Maybe the phosphor is not where it should be and the blue laser light is mixed with white light. I could imagine that this issue is one of the problems if using these new technology.

I'm sure that LED manufacturers (even those with experience in laser technology) present laser diodes with excited phosphor in one package in the next months / years. Maybe they look the same like the LED we know and maybe they could also easily be reflowed? I remember that Osram presented such a concept some time ago...

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