need help with SSC p7 powered motorcycle headlight

[SSC-P7-Headlight]

Hey...

So I'm trying to build a headlight for my classic triumph with 2 ssc P7's
Problem is...

The drivers I bought are SUPPOSED to work up to 15 volts
(there the 3 mode 10 dollar jobs)
They burn out in 5 mins at 12 v even heatsinked to a giant CPU heatsink.
My other problem is the LED's put out so much heat its stupid... They burn out
in 30 seconds...

I'm using arctic silver epoxy to mount the emitters and arctic ceramic epoxy for the drivers. my heatsink reaches a max temp of 170* F before things start to go bad.

Maybe I have china-clone emitters? maybe 12 volts is too high for the 15v drivers?

I'm like at my wits end. I've burned out 4 drivers and 3 LED'S making 5 diff prototypes.

Worst part is, when the drivers die, they juice the emitters with 12V and instantly destroy them :mecry::mecry::mecry:

What am i doing wrong here? you guys are the pros! any help is greatly appreciated.

Chris

 

[big vin]

buy a nice quality driver, like a taskled one. Then you should have no more problems...

 

[nein166]

If they are in parrallel and the driver fails then... well thats what happened right,

I can't rave enough about taskled.com drivers they are top notch!
They are slightly technical in the installation but well documented.
And lots of us know them intimately so you can get support if you need any.

The Hipflex should work in your situation and if you use the Bicycle DuoMode then you will have Hi/Low and as long as you don't let DMV know theres a strobe mode all should be swell.

The HipCC should work out for you too if you don't need a Low

 

[nein166]

As to your heat sinking the P7 is a 10 Watt power LED
That said a fair amount will be heat energy and for 30W of power your heat-sink is going to get Hot unless its actively cooled. That is not all heat but I don't remember the light to heat ratio.
Driving should really help get the heat out. Got any pictures or dimensions?

 

[Icarus]

Hi Chris, welcome to cpf!

Like big vin and nein said... Buy a taskled driver.
Hipcc would work well in this application.

Posting some pictures of your prototypes would be much appreciated as I'm curently looking into the possibilities to build a LED headlight and/or additional lighting for my Royal Enfield Bullet.

 

[waddup]

x3,

quality electronics can be trusted. you dont want your headlight going at 70 mph in the dark.

 

[SSC-P7-Headlight]

Wow you guys know your stuff...

So run 2 ssc p7s in series with a HIPcc?
2800ma.

Ill get pics up later

Thanks for your help.

 

[nein166]

The HipCC will work great

Just wire it in line with the light switch +IN and -IN
And wire the LEDs in series to the LED+ and LED-
Lights ON or OFF no levels

 

[big vin]

Maybe 2800mah is a bit to bright?

 

[LEDobsession]

Let's see some pics! :twothumbs

 

[nein166]

Maybe 2800mah is a bit to bright?

:shakehead Blasphemy!

:nana:

 

[mds82]

Check this out...

http://candlepowerforums.com/vb/showthread.php?t=228933

I made a bike headlight with some MC-E's

 

[SSC-P7-Headlight]

Wow that bike headlight is wild.
Mine uses a 7" mirror polished stainless bowl, the bowl fits perfectly behind the lucas glass..

I will post pics today

 

[Squidboy]

This might seem a bit daft but

In old triumphs was the 12 volt supply regulated properly. Most modern triumphs do the same as cars at startup and cut the feed to the headlight momentarily to stop you frying them.

Just a thought from the bike side rather than the led side

 

[Icarus]

Don't be shy to post a picture of the bike as well...