9090 LED's (6x) in dive light - what are they?

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suahuatica
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9090 LED's (6x) in dive light - what are they?

Hey guys!

I’ve been using some excellent dive lights for underwater art photography, and they contain (amongst a red and blue light strip) 15 LED’s of supposed CREE origin. I have measured the light to be roughly 5500 lumen, based upon comparing it with my original lights.

Today I stumbled upon this particular light on Dealextreme, but found it in a dozen places, it seems to be relatively new:
https://www.dx.com/p/led-underwater-video-light-10000-lumens-6x-cree-sst...MJNKgkk

Elsewhere it’s mentioned as having “9090” or “4xXM-L2×6” leds.
https://shopee.co.th/Six-9090-XML2-Four-XPE-R5-Four-XPE-R5-LED-80m-Canister-Light-i.50232944.1319199816

The LED’s dont really look like SST-90 to me. At all. And as far as I can see there exist no combined 4 x XM-L2 under a single mini lens configurations (But I’m far from an expert).

Can anyone tell me if this particular light will have more or less light than my previous ones? (very similar externally, but different led configuration) :
https://www.amazon.de/gp/product/B07CXFLY4J/ref=oh_aui_detailpage_o02_s0...

It is listed as having “15 × 5050” besides the red/blue light strips. It’s an extremely wide beam.

Thanks a lot from a newbie! Smile

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djozz
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I do not recognise them. Could well be chinese. Chinese leds moved up from poor quality to mediocre quality in the last years, these leds could be reasonably ok but I fear for the tint.

thijsco19
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Maybe a cree mkr?

Though it seems there are 2 versions??

Niko
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On link picture showing light distance 300-500m underwater!

Don’t buy this shitt.

suahuatica
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Niko wrote:
On link picture showing light distance 300-500m underwater!

Don’t buy this shitt.

Hehe I already have the similar light but with the 15-led configuration. It’s a wide-beam flood type light and of course the promo/spec sheet is chinese nonsense. But it’s bright and has an insane angle, so that’s what I was looking for. Just wondering if the ones with the 6-led configuration are even brighter perhaps!

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2100
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The LEDs are probably ok in output even if they are the “chinese equivalent” stuff, go search here in BLF for the Rome Asahi Q30 thread, the light is supposed to be 3 × 70.2 but instead it’s chinese 7070. Even then, it’s decent output for that light for the kind of price (i was able to get it for just usd 44 or so, but still not low enough i was aiming for like usd 35 Big Smile ), 7-8k lumens in a ceiling bounce, even if it isn’t a 21k lumens Haikelite MT09R. For sure you can push 7-8k out of a single Cree 70.2, but i am pretty sure that your lm/W efficiency would be way worse than even the “nasty” chinese LEDs.

All these stuff is really dependent on the driver and how much it’s pushing, coz as we all know you can run 50k lumens in a 1kg light underwater and there still would not be an overheating issue for the LEDs.

So 6 pieces, 15 pieces of the LED in the light it’s going to be the same thing unless they do spec a higher power driver/more batteries in the bigger light with more LEDs, then would it make a practical difference in real life.

And i suppose if you are doing some videography as well then the tint is reasonably important.

You might find some pictures in the reviews section in the links below to give you more info for reference.

I read that it’s about 6000 lumens in reality in one user review, so i suppose it wouldn’t be a 1000 lumen light.

At usd 37 for the links below, i think it’d be difficult to ask for more from the price. If you want more light, go for 2 or even more, nets you longer runtimes as well. Smile

https://item.taobao.com/item.htm?spm=a230r.1.14.102.234d63e1ZOD6lP&id=56...

https://item.taobao.com/item.htm?spm=a230r.1.14.120.234d63e1ZOD6lP&id=57...

https://item.taobao.com/item.htm?spm=2013.1.20141001.1.f9f36a340coV1O&id...

2100
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2100
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There seems to be another version. Chinese LEDs definitely.

https://item.taobao.com/item.htm?spm=a230r.1.14.99.546263e1rcBQgx&id=570...

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Niko wrote:
On link picture showing light distance 300-500m underwater!

Don't buy this shitt.

Obviously there is some sort of typo Wink in those figures.

2100 wrote:

Totally smells like out of order light quality in those torches, could it be?

 

Cheers Smile 

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Mieciu
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I had such light and it leaked on a first shallow 15m dive.
Salt water killed everything Sad
It’s a lottery, some of my friends use it and they are happy….

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Mieciu wrote:
I had such light and it leaked on a first shallow 15m dive.
Salt water killed everything Sad

So, did you have fun? Maybe some teflon tape… 

What is the actual effective throw of it? Not now, I mean, when Innocent working. 15 meters?

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Rec diver
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Same trouble here. My leaked after 5 dives.I was able to save mine and found the the switch is poorly designed and allows water in.

I bought another light 6LEDs 9090, slightly different body style , more like one pictured with camera on previous post, and I took the switch apart and noticed that this light has improved switch. They added another silicone membrane to stop water from ever coming in contact with button shaft.

I use two of these , have about 40 dives with them up to 30m and so far so good!
Very bright, but fairly small and in comparison by far cheapest out there.

RokSiEu
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I am looking at https://www.amazon.de/dp/B07FTHDDXN/ref=cm_sw_r_cp_apa_i_.rDoEbNPY39F9

I see that theres a link to taobao but i can’t translate reviews… Is it worth 60€?

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RokSiEu, that looks like another leaky piece of junk with overstated specifications waiting to make your day.

I would rather buy a flashlight designed and built by a real manufacturer. Sofirn has many diving torches, for example (but better look for reviews before buying, like this Sofirn SD05 review by Nachtfeuerzeug). ThorFire, another nice brand, has its ThorFire S1 diving flashlight recommended at GloboSurfer as a best pick.

Anyway, feel free to ask but wait for more experienced users in these concerns to chime in. 

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Rec diver
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If you are looking for powerful light with wide angle beam , check the link below. I bought two of these and have about 60 dives with them and so far they perform well. Very reasonable price

https://www.ebay.com/itm/-/233224259249

RokSiEu
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Is it blue or UV?

Do you have some pictures or videos taken with those lights? Can it be mounted to gopro holder?

Rec diver
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Try this link , all details are listed .
I used model that has 6× 9090LEDs , those blue/uv leds really work for corals with neon colour.

https://www.ebay.com/itm/27LED-30000LM-Photography-Underwater-White-Red-...

Video taken with these lights.
https://www.youtube.com/watch?v=yhM3cym6ffE&t=83s

They have 1/4in tread so you can fit attachment to suit your need.

Barkuti
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Rec diver, your above #15 post includes a link full of unnecessary tracking information, all which comes after the question mark and the question mark itself is better removed.

https://www.ebay.com/itm/14-LED-Diving-Flashlight-Underwater-80M-Photography-Video-Torch-Red-Blue-White/233224259249

The link can in fact be further simplified by removing the information between the itm string and the article number:

https://www.ebay.com/itm/-/233224259249

However, the reason I'm telling you this is because the excessively long link you posted breaks the forum page layout, as it exceeds the thread box. Could you please edit your post and replace that link with one of the above? Thanks.

For illustrative purposes:

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Localized AliExpress links mess up with the language setting of whoever clicks or taps on them. While this is a fault of the AliExpress system, turning localized links into global links helps and is easy; just change the locale letters in the url for www. Example:

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RokSiEu
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Rec diver wrote:
Try this link , all details are listed .
I used model that has 6× 9090LEDs , those blue/uv leds really work for corals with neon colour.

https://www.ebay.com/itm/27LED-30000LM-Photography-Underwater-White-Red-...

Video taken with these lights.
https://www.youtube.com/watch?v=yhM3cym6ffE&t=83s

They have 1/4in tread so you can fit attachment to suit your need.

Amazing video, which camera are you using?

Rec diver
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Panasonic GH5

Rec diver
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Sorry, link fixed. I hope it still works.

RokSiEu
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It does, tnx for the tip, now I’m just thinking if I should go for the one with more LEDs as most of the dives are done in mediterranean sea where we don’t have such great light conditions as in Carribean

Rec diver
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I do believe that the 6×9090 LED model produces more light ( they claim 500W, probably less but very bright)
The light you were referring in your first post have 15 smaller LEDs but they rate these (120-180W equivalent) which would mean a lot less light produced. The 9090 LEDs are some of the most powerful out there.
The model with six 9090s have burning time 45min at full brightness with good Panasonic batteries.
With three modes you can easily adjust desired brightness and on low batteries will last more than 80 min.

RokSiEu
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That is what I wanted to hear. Thank you

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See this Scubaboard thread for more information on these lights – ‘Cheap Chinese Video Light’

A chap reviews the differences between the A11, A15, A10

I have the A15 and find it very good. From the other posts in the thread though I am wary about the clicky switches failing after more than a few dives.

As I posted in that thread, has anyone had any experience with the new type popping up now? COB Led versions

Only ~£30 i’m tempted to pick one up.
4 × 18650 as per the others, looks to be the same chassis just with a different led.

‘uranusFire’

‘Brett’

The LED is a COB type – can’t find any information as to which one.

Im curious to see if this is more powerful / has a different beam profile to the 15 x XML-2 variants

EDIT: I have started a new topic on these COB lights here

Bought a light for scuba diving once. Do LED's contain nicotine?

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Hi RokSiEu,
as I mentioned on ScubaBoard, these lamps come with different names, check this: https://www.aliexpress.com/item/33011130681.html
Between QH15, and QH14-7, the more powerful is QH14-7 (also pictured in post #8), and QH15 has a warmer tone. My tip would be to buy 2 and mount them on a plate on bendable arms, or not fully screwed in, thus have them able to turn.

On Amazon (.de or .fr), QH15 is below 40 EUR. Cheapest is the QH18 variant: https://www.amazon.fr/gp/product/B07C3PMF1R . (BTW, Chinese prices on 1688.com for almost all these lamps are like 10EUR /lamp, but you have to buy quantities (10 was too little from one supplier, although they advertised you could buy at least 2; it seemed they wanted to test me, so I gave up). You could buy 2 of these, and be below 60 EUR; for the total ~10K++ lumen underwater, it’s unbeatable.

On my YT channel (subscribe! ;-)) you can see how the QH15 (on the left) and the QH14-7 (on the right) look underwater:
https://youtu.be/9USodzbUD4M?t=7m58s , with a simple go through all modes of use (and with white light + red)
https://youtu.be/m2Tr20TXrac?t=29m47s , you can clearly see the difference in light temperature on the sand, without filter
https://youtu.be/m2Tr20TXrac?t=34m38s , same video, with Backscatter “Dive” Red filter, QH14-7, since it’s cooler, the red filter doesn’t make the image too yellow, and you can use with the filter to get more colors in the background /more distant).
https://youtu.be/9USodzbUD4M?t=12m8s , here you can see, the Red and Blue Leds in action (with and without the “Dive” red filter).

But all the QH series need a better driver; the lights flicker when being used at 50% and 25% power settings : https://youtu.be/r5JLznkOaBM?t=13m18s , flickering at 13:35.
In almost every video in the “Hurghada 2019” playlist I used usually the QH15 and QH14-7, but also the QH18 in the first 2-3 days (forgot to write down which was which), so pick any video, and go through the playbar until you find something interesting to see, and make a choice.

I actually think it’s somehow the same base-design as the BLF Q8. Maybe we could change the driver and make them much more powerful. A mod for the buttons, like unscrewing, gluing some additional membrane, and screwing back on wouldn’t be inconceivable.

Lexel, since you started the BLF Q8 thread, would you be interested in taking a look at these? Either by aquiring one, or having one sent to you by one of us? Maybe Mieciu and Rec diver, who’ve had broken lamps could disassemble theirs and post some pictures?

What do you people think?

RokSiEu
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I’ve just received my light from amazon.de , expencier than other sites but 1 year warrenty is worth it.

I hope I’ll try it next week in Croatian sea.

Are you using gopro? Which macro addon? Which holder?

Regarding mods, let me know if I can help!

SwimmingFish
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I am using GoPro 7 Black with the Backscatter Flip 7 Kit. It does it’s job nicely, but I wish I would have searched more before, it has some design flaws, which you discover in use, and there are cheaper similar versions available.