Wiring P4

[kokesh]

Probably stupid beginners question
How do I wire following?
CREE 7090 XR-E P4
(http://dealextreme.com/details.dx/sku.3417)
2.7V~6V 3W Cree Circuit Board for Flashlights
(http://dealextreme.com/details.dx/sku.25518)
I've just ordered it to replace halogen bulb in my old headlamp (4x AA, so 6V power source).
I just need to know, what to solder where (power source +/-, regulator's +/-, P4's +/- )

thanks!

 

[Norm]

As you can see the board has a red and black wire attached, solder the black wire to the - and the red wire to the +. The centre of the back of the regulator is +, the ring around the edge is -, these are your battery connections.
You will need to use a heat sink for this LED.
Norm

 

[kokesh]

Thanks Norm!
Do I understand correctly, that the regulator should regulate the power the way, that I can use 3x AA, 4x AA or 4x AA Ni-MH? I just do not want to fry it, since it will take something like two weeks to receive the order from Hong Kong

Heat sink - what is the best way to connect it o LED? Some extra-strong glue should be enough? I guess that I'll use some piece of aluminium, maybe 4mm x led's board diameter.

 

[AnAppleSnail]

Thanks Norm!
Do I understand correctly, that the regulator should regulate the power the way, that I can use 3x AA, 4x AA or 4x AA Ni-MH? I just do not want to fry it, since it will take something like two weeks to receive the order from Hong Kong

Heat sink - what is the best way to connect it o LED? Some extra-strong glue should be enough? I guess that I'll use some piece of aluminium, maybe 4mm x led's board diameter.

You'll want more heatsink, either a flashlight body or more metal. That sounds like you're gluing a 4-watt LED to a nickel for cooling. The DX regulator "should" (no-name chinese brand electronics air-quotes) work on any voltage within its rating.

 

[Lighthouse one]

Led's need a decent heatsink...you can buy a cheap led headlight that will probably work a lot better than what you want to do. Not that you shouldn't do it- but you might need a bit more experience before you attempt it.

 

[kokesh]

that's true, I guess that i would need much more to cool it What is the best way to connect heat sink? Glue?

 

[Norm]

that's true, I guess that i would need much more to cool it What is the best way to connect heat sink? Glue?

Arctic Alumina Thermal Adhesive (two-part Epoxy), set of two tubes at 2.5gms each Price: $7.50 per set
Norm

 

[DM51]

Belated move to the Electronics/Batteries section...