PDA

View Full Version : Torches with a CREE Emitter?



scubamike
09-16-2007, 17:07
Why haven't anybody made a flashlight/torch that uses the new LED emitters (CREE, SOUL, ETC).

I have a tiny 1 AA battery CREE flashlight that's brighter than a 4xD Maglite. I then tried to mod a 4XAA UK Aquatics (UK40) light to use a Cree emitter but I was unsuccessful.

Have anybody try modding their torches?

scubamike
09-30-2007, 11:22
I am surprised nobody is aware of the new LED technologies out there. They are extremely bright for their small size.

I was able to buy one with a Luxeon LED Emitter (bulb). Though, not as good as the CREE or SEOUL emitters is 10 brighters than my UK40 Led Flashlight..Same size.

Kidder
09-30-2007, 11:30
I am surprised nobody is aware of the new LED technologies out there. They are extremely bright for their small size.

I was able to buy one with a Luxeon LED Emitter (bulb). Though, not as good as the CREE or SEOUL emitters is 10 brighters than my UK40 Led Flashlight..Same size.

Wow ten times brighter??? Thats pretty amazing. I'm surprised that they aren't selling up grade kits for shock waves and light cannons.

scubamike
10-01-2007, 12:23
Next weekend I will try to mod the led bulb form the UK40 light with a Seoul Emitter I bought from HK.

I believe manufacturers are coming out with the new LEDs already. Luxeon is an example. Maybe in 1 or 2 years they will start using the new LED like CREE, SEOUL, etc.

For more info click here
http://www.candlepowerforums.com/vb/index.php

scubamike
10-09-2007, 21:24
I modded my UK Q40 light last weekend. It's incredibly bright!!!.

Some pictures.

Scout
10-10-2007, 21:44
I like the idea of this mod! :smiley20: Can you post some details in the DIY section to help me get started?

BSea
10-15-2007, 11:15
I like the idea of this mod! :smiley20: Can you post some details in the DIY section to help me get started?

I 2nd this suggestion. Plus let us know what parts you used, and where you got them.

sudnit5
10-15-2007, 15:31
One more for the posting of info. I have heard the new CREE LED lights are extremely bright. Can't wait to see.

scubamike
10-16-2007, 21:47
I like the idea of this mod! :smiley20: Can you post some details in the DIY section to help me get started?

The Emitter you can purchase from
http://www.dealextreme.com/details.dx/sku.3393

That's not the exact one I bought. It seems they ran out. I bought the 12.8mm one.


The lens and reflector from
http://www.kaidomain.com/WEBUI/ProductDetail.aspx?TranID=1488



That's the only thing I needed to purchase. I had soldering irons, flux, cables, etc. Too bad I didn't take pictures while I was working on the project. I felt people were not interested in this stuff.

It's actually very easy to do. I remove the LED from the UK light bulb, made small cuts, solder it, put the wires, use epoxy to keep the same shapes as the original, let it dry and it was finished.

datamunk
10-17-2007, 11:55
i wish i was better with all that kinda stuff... i would have no idea where to begin :(

ScubaJ
10-17-2007, 11:59
Sounds like the beginning of a lucrative business. :smiley2:

Reg
10-20-2007, 04:48
Sounds like a simple upgrade, I'm definately interested in this. How many Lumens is the CREE XR-E P4?

Venio
10-20-2007, 10:46
I think the mod is very interesting. However, I don't see a hydrogen absorbing catalyst in it. I'm not sure what is the probability of a light to explode due to hydrogen gas buildup, but I know u/w lights have catalyst in them to prevent that. It may be a good idea to do some more research on this topic. I'll post back if I get any info.

Venio
10-20-2007, 10:47
Sounds like a simple upgrade, I'm definately interested in this. How many Lumens is the CREE XR-E P4?

It's based on the power input. See the white papers from CREE (http://www.cree.com/products/pdf/XLamp7090XR-E_B&L.pdf).

It seams like its 80-87 lm @ 350mA.

scubamike
10-22-2007, 00:17
Sounds like a simple upgrade, I'm definately interested in this. How many Lumens is the CREE XR-E P4?

It's based on the power input. See the white papers from CREE (http://www.cree.com/products/pdf/XLamp7090XR-E_B&L.pdf).

It seams like its 80-87 lm @ 350mA.

Yes that sounds about right. For my modded light.. I will try to make a mod to a AA light I have so it's waterproof. It has all the O-Rings but it's not rated to go underwater.

Reg
10-22-2007, 06:38
I modded my UK Q40 light last weekend. It's incredibly bright!!!.

Some pictures.

Doesn't the Q40 Use AA's? What time of Runtime do you get? I would like to try a Cree Q5 as mod but i can't find find a suitable waterproof housing that can take the batteries for the 1000mA Output!

scubamike
10-22-2007, 10:45
I modded my UK Q40 light last weekend. It's incredibly bright!!!.

Some pictures.

Doesn't the Q40 Use AA's? What time of Runtime do you get? I would like to try a Cree Q5 as mod but i can't find find a suitable waterproof housing that can take the batteries for the 1000mA Output!

The UK Q40 uses 4XAA batteries. I tried running in a bucket of water for 1 hour and 30 minutes and it was still going strong.

I purchase another flashlight
DealExtreme: $14.55 SAIK RC-A3 Cree AA Flashlight (Gray) (http://www.dealextreme.com/details.dx/sku.5346)

The o-rings and the built are excellent. The only issue with this light is that it uses a clicky switch which I can guarantee would flood underwater. I need to fix this. (suggestions). For the front lens I would you silicon to seal it (maybe)...

Oh and it's almost as bright as my modded UK Q40. But it's tiny and uses 1 X AA battery

Reg
10-23-2007, 03:43
That what i like see :smiley20: some Dive light Mod's!

I just ordered this:
DealExtreme: $10.95 5W Luxeon Lumiled 3-AAA MXDL Flashlight (http://www.dealextreme.com/details.dx/sku.3405)


I'm not sure how Waterproof it going to be but i might do a few bucket tests. I'm any goes wrong its only $10.

Also I'm looking at this Basic 4 Led,
Fronta 4 LED Scuba Dive Torch Flash Light (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=140110222469&ssPageName=STRK:MEWA:IT&ih=004)


Just for the case and then see If I can do some mod. It would be nice drive the Cree Q5 to get the full 200+ Lumens out of it.

There are some some discussion on the DealExtremem Forums regarding DiveLight Mod's

scubamike
10-23-2007, 08:16
That what i like see :smiley20: some Dive light Mod's!

I just ordered this:
DealExtreme: $10.95 5W Luxeon Lumiled 3-AAA MXDL Flashlight (http://www.dealextreme.com/details.dx/sku.3405)


I'm not sure how Waterproof it going to be but i might do a few bucket tests. I'm any goes wrong its only $10.

Also I'm looking at this Basic 4 Led,
Fronta 4 LED Scuba Dive Torch Flash Light (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=140110222469&ssPageName=STRK:MEWA:IT&ih=004)


Just for the case and then see If I can do some mod. It would be nice drive the Cree Q5 to get the full 200+ Lumens out of it.

There are some some discussion on the DealExtremem Forums regarding DiveLight Mod's

Oh please share your results. I was thinking about doing the same thing. Buy some of the lights and try them. But remember CLICKY SWITCH will not be good for scuba. That's the largest point of failure IMO and the front lens unless you find a way to seal them.

sudnit5
10-23-2007, 10:43
Definitely let us know how they work, I have been looking at some lights on that site

Reg
10-27-2007, 05:25
That what i like see :smiley20: some Dive light Mod's!

I just ordered this:
DealExtreme: $10.95 5W Luxeon Lumiled 3-AAA MXDL Flashlight (http://www.dealextreme.com/details.dx/sku.3405)


I'm not sure how Waterproof it going to be but i might do a few bucket tests. I'm any goes wrong its only $10.

Also I'm looking at this Basic 4 Led,
Fronta 4 LED Scuba Dive Torch Flash Light (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=140110222469&ssPageName=STRK:MEWA:IT&ih=004)


Just for the case and then see If I can do some mod. It would be nice drive the Cree Q5 to get the full 200+ Lumens out of it.

There are some some discussion on the DealExtremem Forums regarding DiveLight Mod's

Oh please share your results. I was thinking about doing the same thing. Buy some of the lights and try them. But remember CLICKY SWITCH will not be good for scuba. That's the largest point of failure IMO and the front lens unless you find a way to seal them.

So do you think a "twist" style would be better? Twist On/Twist Off? For the front maybe Silicon or an O-Ring?

Reg
10-27-2007, 06:01
Deal Extreme seem Ok, I just wished they stocked hand held torches like these

QuadStar Phazer, 3C, Seoul Semiconductor, 10.8 Watts, 720 Lumens (http://forum.scubatoys.com/newreply.php?do=newreply&noquote=1&p=82226)

These are not Dive proof though

scubamike
10-28-2007, 10:17
[quote=scubamike;79566][quote=Reg;79516]

So do you think a "twist" style would be better? Twist On/Twist Off? For the front maybe Silicon or an O-Ring?

I believe Twist On/Off are better for Scuba. A clicky switch has too many parts that can leak. E.g. The SAIK light I have with a clicky has 3 points where water can get in. The first is the silicon tail cap, if water gets in. Then it will leak into the clicky switch compartment. After that there is a big size o-ring between the click and the inner tube of the flashlight.

So as you can see, there are just too many holes where water can leak in. Hmm I just thought about using aquaseal to glue the silicon tailcap to the back of the flashlight..... :smiley20:


There is an O-ring between the lens and the main tube of the light. I just dont think it's good enough to go under 15-20 feet.

All the mods I am making are to make a primary light that is BRIGHT, SMALL and also cheap. :-)

So it's the luminosity/size/money ratio.

Reg
10-30-2007, 04:24
Well its sound like we are after the same type of light.

My DealExtreme: $10.95 5W Luxeon Lumiled 3-AAA MXDL Flashlight (http://www.dealextreme.com/details.dx/sku.3405)arrived yestesday. Everything comes apart so there are lot of places for the aquaseal :smiley20: (as suggested). I'm not sure how to seal the front glass or even if this will stand up to 20m Dive.

Adding silicon grease is must have to all connecting areas. (hopefully this help the o-rings) Might take it out this weekend, but its grown on me and i'm not ready destroy it. :smiley19:

scubamike
11-02-2007, 08:23
OK, I tested the light in the pool. :-( Partial success...

There was only one drop of water inside the front lens. The rear cap was water tight. I sort of expected that because of the cheap and tiny o-ring they added. But even with aquaseal did not stop water from leaking in.

Tomorrow I will apply more aquaseal.. the light was pretty bright even inside a swimming pool.

mitsuguy
11-02-2007, 11:10
look in the DIY section for "cheep 3 watt led" and you can find a $20 waterproof housing with space for 3 AA batteries, or more if you take a dremel to it...

Puffer Fish
11-03-2007, 00:49
Ok, this has me absolutely amazed... I never had a clue there were this many people interested in flash lights and flash light bulbs....

If I understand this, the bulbs require a control board of sorts, batteries and obviously a switch. With the trick being to have a water proof casing. They also seem to make a combined head that includes all of the electronics. I am very surprised that one could not find one of the simplier and cheaper UW screw on lights, and retrofit something to fit inside, rather than try to make a poorly designed case work underwater.

Neat subject by the way. I would guess that the UW light people will get there eventually.

Reg
11-03-2007, 01:16
Ok, this has me absolutely amazed... I never had a clue there were this many people interested in flash lights and flash light bulbs....

If I understand this, the bulbs require a control board of sorts, batteries and obviously a switch. With the trick being to have a water proof casing. They also seem to make a combined head that includes all of the electronics. I am very surprised that one could not find one of the simplier and cheaper UW screw on lights, and retrofit something to fit inside, rather than try to make a poorly designed case work underwater.

Neat subject by the way. I would guess that the UW light people will get there eventually.

I think its the challenge!!, current manafactures in UW dive lights use LED lights that are low rated in comparison to whats available in the LED light market. And why wouldn't they, if they can a sell a 1W one month 3W next month and 5W for the month after that. It would be better for them than offering a 12W straight up.

After much reading and trying to understand the complexities of pressure on underwater equipment its probably best to get a 'cheaper LED' Model and upgrade it. :smiley24:maybe that marketing avenue for someone "The upgradable"

Anyone found a good UW case to mod?

Puffer Fish
11-03-2007, 01:28
Ok, this has me absolutely amazed... I never had a clue there were this many people interested in flash lights and flash light bulbs....

If I understand this, the bulbs require a control board of sorts, batteries and obviously a switch. With the trick being to have a water proof casing. They also seem to make a combined head that includes all of the electronics. I am very surprised that one could not find one of the simplier and cheaper UW screw on lights, and retrofit something to fit inside, rather than try to make a poorly designed case work underwater.

Neat subject by the way. I would guess that the UW light people will get there eventually.

I think its the challenge!!, current manafactures in UW dive lights use LED lights that are low rated in comparison to whats available in the LED light market. And why wouldn't they, if they can a sell a 1W one month 3W next month and 5W for the month after that. It would be better for them than offering a 12W straight up.

After much reading and trying to understand the complexities of pressure on underwater equipment its probably best to get a 'cheaper LED' Model and upgrade it. :smiley24:maybe that marketing avenue for someone "The upgradable"

Anyone found a good UW case to mod?


You may be correct, but I also know that heat issues can be very ugly with UW lights, as what is good for protection is terrible for dissipation of heat.

I also think there are price/profit concerns, as well as durability "questions". Not saying it is correct, but if they believe that the diver will only spend say $80 for a small light, they will tend to only design and sell things they can make money at around that price point. Keep in mind that diving lights are returned far more often than regular lights ever would be, so there has to be money for warrenty issues.

But people doing the sort of stuff listed here, will actually help push things along..particularly if they are successful, so here's to being successful.

scubamike
11-03-2007, 22:39
Well guys, in my constant struggle to build a cheap and bright light. I have bought the new Cree Q5 emitter the ratings are:


350mA: 107~114lm
700mA: 171.2~182.4lm
1000mA: 214 ~ 228lmI bought 2 types of driver (800mA and 1000mA) and I will test them out too see how hot they get. But at 800mA - 170 lumens seems more than sufficient for a small light like my UK Q40.

Also I bought the pelican 2600 and will rebuild the krypton light bulb with an emitter. If I can get constant 150-180 constant lumens for 1 hour I will be done spending all this money modding lights. :-)
Pelican 2600 HeadsUp Lite Krypton Flashlight SALE Pelican Heads Up Lite Flash lights (http://www.opticsplanet.net/pelican-headsup-lite-2600-flashlight.html)

These guys are the masters at LED modding. LED lights costing U$500-$1000. With a friend of mine we rebuilt the 3-D cell maglights..and the light beam is so fricking bright.. is like a laser. (Heatsink = 10 bucks + emitter 5 bucks)

CandlePowerForums (http://www.candlepowerforums.com/)

Tektike makes drop in light bulbs.
Tektite - LED Flashlights, LED Replacement Bulbs, Dive Lights, IR, Strobes, Marker Lights, UV, CSI, LZ kits, & Tekna Knives and lites (http://www.tek-tite.com/src/products.php?c=1055)

But not even close in brightness as the new LEDs.

Reg
11-03-2007, 23:52
I think the hardest part will be to "rebuild the krypton light bulb with an emitter". When it works it will be fantastic mod. :smiley20: Oh and of course Heat! Start at 350mA and work up wouldn't want to melt the housing. Anything above 80 lumens and your infront.

Puffer Fish
11-04-2007, 06:22
Well guys, in my constant struggle to build a cheap and bright light. I have bought the new Cree Q5 emitter the ratings are:


350mA: 107~114lm
700mA: 171.2~182.4lm
1000mA: 214 ~ 228lmI bought 2 types of driver (800mA and 1000mA) and I will test them out too see how hot they get. But at 800mA - 170 lumens seems more than sufficient for a small light like my UK Q40.

Also I bought the pelican 2600 and will rebuild the krypton light bulb with an emitter. If I can get constant 150-180 constant lumens for 1 hour I will be done spending all this money modding lights. :-)
Pelican 2600 HeadsUp Lite Krypton Flashlight SALE Pelican Heads Up Lite Flash lights (http://www.opticsplanet.net/pelican-headsup-lite-2600-flashlight.html)

These guys are the masters at LED modding. LED lights costing U$500-$1000. With a friend of mine we rebuilt the 3-D cell maglights..and the light beam is so fricking bright.. is like a laser. (Heatsink = 10 bucks + emitter 5 bucks)

CandlePowerForums (http://www.candlepowerforums.com/)

Tektike makes drop in light bulbs.
Tektite - LED Flashlights, LED Replacement Bulbs, Dive Lights, IR, Strobes, Marker Lights, UV, CSI, LZ kits, & Tekna Knives and lites (http://www.tek-tite.com/src/products.php?c=1055)

But not even close in brightness as the new LEDs.
Well, hurry up and get it done... am very interested in "the rest of the story"....

Reg
11-08-2007, 04:59
ScubaMike, How did the Mod go?

scubamike
11-11-2007, 16:02
ScubaMike, How did the Mod go?

Complete failure.

I encountered a few problems trying to mod the light. The plastic switch in the pelican headlamp is junk. It broke and I could not fix this.

The springs that makes contacts with the battery are only meant to be used with Alkaline batteries. A simple solution but it was another issue I faced.

And the worse problem is that the reflector is glued to the front lens. Either that or it's a one piece (reflector/lens). I did not want to try prying it open.

The good news is I still believe this light has so much potential. The reflector size is the same as the mag lite reflector (diameter). And it's such a simple light (switch and 2 cables).

Something likes this can fit perfectly inside the enclosure. The huddle is how to remove the reflector from the lens.
http://img.photobucket.com/albums/v313/3rd_shift/SANY0038.jpg

After all, it was a good learning experience. If I had another one of the pelican I believe I would know what to do now as I didn't know how to disassemble the light and it resulted in me breaking the switch.

Regardless, I did not receive the drivers nor the Q5 from the vendor yet. So I may still try it in the future. A similar light with the same output would cost about $200-$300

Navy OnStar
11-11-2007, 20:27
My wife hates you guys! Because fo this thread, I have now ordered a tl-5ex 5 watt led and it creams my 3 led minimag flashlight I haven't madded any diving lights yet but When I do you'll be the first to know.

Reg
11-14-2007, 02:33
Sorry to hear about the switch :smiley19: but you never know until you try i guess.

Is that a picture of Quad Q5? That would be nice to try but it would need a really good heatsink and the reflector would need to made of some metal so that doesn't melt.

A friend directed me to this german website that has 240 Lumen LED Dive Light for $120 US (Ex-tax) might be worth a look. The shipping cost makes it too expensive for me.

Tauchlampen24 (http://www.tauchlampen24.de/show_product.php?cPath=93&products_id=193)

CompuDude
11-14-2007, 03:34
Seems like the Germans are the only ones doing anything organized with LED lights these days.

Seen this one? TillyTec - Green Force | Modellübersicht: LED-Backuplight (http://www.tillytec.de/de/produkte/LED-Backuplight.htm)

Puffer Fish
11-14-2007, 04:09
Sorry to hear about the switch :smiley19: but you never know until you try i guess.

Is that a picture of Quad Q5? That would be nice to try but it would need a really good heatsink and the reflector would need to made of some metal so that doesn't melt.

A friend directed me to this german website that has 240 Lumen LED Dive Light for $120 US (Ex-tax) might be worth a look. The shipping cost makes it too expensive for me.

Tauchlampen24 (http://www.tauchlampen24.de/show_product.php?cPath=93&products_id=193)


Interesting light.... thanks for posting that...

Tableleg
11-14-2007, 08:06
The plastic switch in the pelican headlamp is junk. It broke and I could not fix this. Have you looked for a replacement switch? Try Allied (http://alliedelec.com/) or Mouser. (http://www.mouser.com) Between the two of them, there's usually nothing I can't find. :smiley20:

scubamike
11-28-2007, 20:43
:smiley21:

I came back from my dive vacation in which I tried all the lights I modded. Sadly the UK Q40 worked perfectly and it was super bright. But dumb me left the light on on the surface and the heat melted the emitter and it burned out. That's a mistake I will not repeat. Either I will drive the emitter to lower amps or build a major heat sink around the emitter next time. :smiley19:

The SAIK light also encounter a few problems. I took it down to 75 feet with no problems until the 10th dive where the front lens flooded. :-( The good news everything worked again after I washed it. But I bet I can fix it with Epoxy instead of Aquaseal. I dont think this is the biggest problem though. Once I took the light apart after it was dried... the flashlight was like a salt shaker. A lot of corrosion of the body and some of the electrical contacts.

In conclusion it was a good learning experience and I know what to do for flashlight mod Version 2.0 in the near

I will be buying more of the Pelican Headlamps and buy this

DealExtreme: $28.27 3-LED Cree 3-Mode Regulator + Reflector 2x18650 Module Set (3.6V-9V) (http://www.dealextreme.com/details.dx/sku.9358)

The dimensions are perfect for the front lens. I just have to figure out a way to cut the original reflector from the Pelican. But if it works...man.. I would get about 30-40 minutes of very bright burn time!!

Reg
11-29-2007, 02:44
That would be very impressive if you can do it. Please...:smiley4:.Please take some photo's of your work.

Will you be able to power the 3xCree using the existing battery housing?

One of those headlamps is on my list the next time I'm in the U.S, they are well priced.

scubamike
12-30-2007, 21:47
Attempt #2
New Thread
http://forum.scubatoys.com/diy/8099-cree-dive-headlamp-attempt-2-a.html