How many amps will a 15 watt driver put through a single XM-L2 on copper?

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18sixfifty
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How many amps will a 15 watt driver put through a single XM-L2 on copper?

How many amps will a 15 watt driver but through a single XM-L2?

OK I got this driver and I don’t know what to do with it. It says it’s for 5xQ5’s and is 15watts. Now cree says 10watts with an XML=1,000 lumens or so. Would 15watts give me 1,500 lumens and therefore be around 7 amps or so? I see the calculation that is something like amps=watts/volts but that doesn’t make any sense at all for this application. So does anyone know if I can run a single XM-L2 on a noctigon with good heatsinking with this driver?

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

bdiddle
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it would likely work terribly for an xml. Most of those are wired for series, so 5× 3volts == 15v. Current at 1 amp would give 15 watts.

Newb

Flomotion
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Correction:

That Driver puts out 17.5 Volts

http://img.dxcdn.com/productimages/sku_26106_2_small.jpg

- Output current: 17.5V(800mA) with 5*P4/5*Q5 emitters
- 26mm diameter base, 13mm overall depth
- Voltage: 5V-8.4V
- Mode: High 800mA±20mA; Mid 450mA±20mA, Low 210mA±10mA; Fast Strobe 400mA±20mA; SOS:800mA±20mA
- Memory: fastter than one second is changing mode; slower than 1~2 seconds is stocking memory

Won’t work…

This is the Driver You Want:

http://intl-outdoor.com/xml-multicell-circuit-board-45a-ouput-55126v-p-5...

P = A x V

15watts = 4.5 × 3.3

Flomotion

comfychair
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If it's a boost driver, it's a no-go for a single LED. Input voltage must be lower than the output voltage for a boost driver.

18sixfifty
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Flomotion wrote:
Correction:

That Driver puts out 17.5 Volts

That sounds right. How did you work out the math? Any Idea what I could run with it? 3XM-L2’s? 2MT-G2’s?

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

18sixfifty
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comfychair wrote:

If it’s a boost driver, it’s a no-go for a single LED. Input voltage must be lower than the output voltage for a boost driver.

Must be a boost driver. Is there anything I could use this for that you know of? Or is it only good for underdriving 5 Q5’s?

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

18sixfifty
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Flomotion wrote:
Correction:

That Driver puts out 17.5 Volts

http://img.dxcdn.com/productimages/sku_26106_2_small.jpg

- Output current: 17.5V(800mA) with 5*P4/5*Q5 emitters
- 26mm diameter base, 13mm overall depth
- Voltage: 5V-8.4V
- Mode: High 800mA±20mA; Mid 450mA±20mA, Low 210mA±10mA; Fast Strobe 400mA±20mA; SOS:800mA±20mA
- Memory: fastter than one second is changing mode; slower than 1~2 seconds is stocking memory

Won’t work…

This is the Driver You Want:

http://intl-outdoor.com/xml-multicell-circuit-board-45a-ouput-55126v-p-5...

P = A x V

15watts = 4.5 × 3.3

Thanks I actually do have that driver on the way. Now I’m wondering if there is anything I can do with this one other than tossing it in a drawer or maybe using it as a contact board.

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

mattthemuppet
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18sixfifty wrote:

Thanks I actually do have that driver on the way. Now I’m wondering if there is anything I can do with this one other than tossing it in a drawer or maybe using it as a contact board.

screw a series of cheapo Nichia 119 LEDs to a chunk of aluminium, wire ‘em in series and hook the driver up to a decently chunky wall wart of the appropriate voltage. Then hang it above wherever you’re working and you’ll have an awesome work light Smile

there can never be a part that will be unused, only a part that you haven’t thought how to use yet!

18sixfifty
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mattthemuppet wrote:
18sixfifty wrote:

Thanks I actually do have that driver on the way. Now I’m wondering if there is anything I can do with this one other than tossing it in a drawer or maybe using it as a contact board.

screw a series of cheapo Nichia 119 LEDs to a chunk of aluminium, wire ‘em in series and hook the driver up to a decently chunky wall wart of the appropriate voltage. Then hang it above wherever you’re working and you’ll have an awesome work light Smile

there can never be a part that will be unused, only a part that you haven’t thought how to use yet!

Right on!

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

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18sixfifty wrote:
Flomotion wrote:
Correction: That Driver puts out 17.5 Volts http://img.dxcdn.com/productimages/sku_26106_2_small.jpg - Output current: 17.5V(800mA) with 5*P4/5*Q5 emitters - 26mm diameter base, 13mm overall depth - Voltage: 5V-8.4V - Mode: High 800mA±20mA; Mid 450mA±20mA, Low 210mA±10mA; Fast Strobe 400mA±20mA; SOS:800mA±20mA - Memory: fastter than one second is changing mode; slower than 1~2 seconds is stocking memory Won't work... This is the Driver You Want: http://intl-outdoor.com/xml-multicell-circuit-board-45a-ouput-55126v-p-5... !http://intl-outdoor.com/bmz_cache/6/60518a94b0f6392d133fa3ba363e477b.ima...! P = A x V 15watts = 4.5 x 3.3
Thanks I actually do have that driver on the way. Now I'm wondering if there is anything I can do with this one other than tossing it in a drawer or maybe using it as a contact board.

This is a buck driver all the way. You should have more cells than LED's for this driver. I know - hhhm, me thinks I went thru 3 already, 3 more laying here. Ohh - also it's the same, exact, I mean specifically, driver as the LCK-LED 5A one, just the LCK-LED has more resistors piled up. So, Hank, I guess in his wisdom, had them change or add more resistors to go from 3.5 to 4.5A, otherwise, same exact driver.

This is the driver I've been using in the Shocker, although, with 3 cells, 3 LED's it goes into direct drive mode, but you still get the 3 modes -- well used to at least...

gadabout
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mattthemuppet wrote:
there can never be a part that will be unused, only a part that you haven't thought how to use yet!

Hmmm...

I think that kind of attitude is why I fear I'll one day end up making a guest appearance on "Hoarders" Laughing

mattthemuppet
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gadabout wrote:
Hmmm…

I think that kind of attitude is why I fear I’ll one day end up making a guest appearance on “Hoarders” Laughing

it’s a fine line, that’s for sure. Almost everything I hoard comes in useful eventually. This morning, for example, I used some very thing enameled wire that I kept from salvaged laptop batteries to fix the back light cable in my laptop. Saved me $60 right there, though in exchange for a couple of hours very tense scraping and soldering Smile

the only thing I struggle to use are CW LEDs that I swap out for nicer tints. I usually just give those away.

18sixfifty
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mattthemuppet wrote:
gadabout wrote:
Hmmm…

I think that kind of attitude is why I fear I’ll one day end up making a guest appearance on “Hoarders” Laughing

it’s a fine line, that’s for sure. Almost everything I hoard comes in useful eventually. This morning, for example, I used some very thing enameled wire that I kept from salvaged laptop batteries to fix the back light cable in my laptop. Saved me $60 right there, though in exchange for a couple of hours very tense scraping and soldering Smile

the only thing I struggle to use are CW LEDs that I swap out for nicer tints. I usually just give those away.

Dedome them CW’s and you will get more throw and much better tint.

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

mattthemuppet
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18sixfifty wrote:

Dedome them CW’s and you will get more throw and much better tint.

I might try that, but I do like the (slightly) better colour rendering and contrast from NW LEDs.

Gtamazing
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15 watts boost driver. I’d try it on the 12v MKR with 2 lithiums

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mattthemuppet wrote:

the only thing I struggle to use are CW LEDs that I swap out for nicer tints. I usually just give those away.


your tossing and i just bought some cool white xm-l2 i like lights with maximum lumens

The Journal of Alternative Facts TM

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ILIKEFLASHLIGHTS
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Vinh is getting over 1700 lumens on his 6.5 amps TN31 XM-L2.

18sixfifty
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ILIKEFLASHLIGHTS wrote:
Vinh is getting over 1700 lumens on his 6.5 amps TN31 XM-L2.

I’m not surprised at all. I have a T-90 with a XM-L2 that I am running at 7 amps and it’s amazing how much light it puts out. It took me a bit to get the focus right but man does it throw, it’s de-domed and the reflector is 70mm so the beam it very tight. Just unreal that it can be run with that many amps.

I’m a junky, I mod lights so I can sell lights so I can buy more light to mod so I can sell lights to buy more lights to mod.

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I should add that I am talking about a dedomed XM-L2.

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Here’s some lumen numbers from rdrfronty for his vinhnguyen54 modded TN31 de-domed XM-L2 6.5 amps.

Level 1 – .4
Level 2 – 18
Level 3 – 471
Level 4 – 1050
Level 5 – 1515
Level 6 – 1740