Wondering if I can drive a p7 under mA rating?

Looking at the P7 on DX sku.12721 and was wanting to mount it to an existing flashlight (not changing the driver). I know nothing about the driver my light has, but I know it is 3.6v. Can I solder it to my light even though the drivers mA rating is probably 800 or 900mA? I dont necessarily want or need the 900 lumens, i just want to replace the existing Luxeon "Lumileds" emitter. Thanks guys I know SOMEONE has to know something about this.

greyghost_6 said:

Looking at the P7 on DX sku.12721 and was wanting to mount it to an existing flashlight (not changing the driver). I know nothing about the driver my light has, but I know it is 3.6v. Can I solder it to my light even though the drivers mA rating is probably 800 or 900mA? I dont necessarily want or need the 900 lumens, i just want to replace the existing Luxeon "Lumileds" emitter. Thanks guys I know SOMEONE has to know something about this.

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Yes, You can
At 800mA, You will see about 250~ lumens :candle:

A Seoul P4 may be a cheaper, easier mod.
Norm

compared to the P4, the P7 will have much better heat management and much higher efficiency

I´ve been eyeballing one of these things as well.. but I was thinking of driving the P7 from a SKU 7880... will the 700-800 mA from this 1AA-driver manage to light up the P7??

Welcome to CPF, greyghost_6.

You posted this in the Buy/Sell/Trade section, which is not the right place for it, so I'm moving it to H&M for you.

Sabrewolf has done it. Exactly what you are contemplating.
You can search "threads started by" and you'll see.

Chodes said:

Sabrewolf has done it. Exactly what you are contemplating.
You can search "threads started by" and you'll see.

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Her you go Review: Mini-EDC P7 by Sabrewolf - CandlePowerForums
Norm

Norm said:

Her you go Review: Mini-EDC P7 by Sabrewolf - CandlePowerForums
Norm

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I prefer these :twothumbs

Jetbeam Pro III ST with a P7
https://www.candlepowerforums.com/threads/207314

Jetbeam I I.B.S. with a P7 Upgrade
https://www.candlepowerforums.com/threads/218705

how about MC-E?
Jetbeam I.B.S. AA/14500
https://www.candlepowerforums.com/threads/231109

Ok, Thanks guys! Finally I get the ok to buy! I bought the P7 with a reflector and new lenses that should fit in the host im trying to mod (MATCO 3-watt) Ill post some pictures of before and after and some beamshots before and after. The stock lumen rating stated 70 lumen so im hoping for much better output!

greyghost_6 said:

Looking at the P7 on DX sku.12721 and was wanting to mount it to an existing flashlight (not changing the driver). I know nothing about the driver my light has, but I know it is 3.6v. Can I solder it to my light even though the drivers mA rating is probably 800 or 900mA? I dont necessarily want or need the 900 lumens, i just want to replace the existing Luxeon "Lumileds" emitter. Thanks guys I know SOMEONE has to know something about this.

Click to expand...

Certainly... In fact many lights (especially the pocketable 2xCR123 sized) COMPLETELY lack sufficient thermal cooling to sustain a P7 or MC-E driven at its fullest. yeah you can rig up a DD circuit, emit 700 emitter Lumens... only to have it drop significantly after 20 seconds as heat builds and the cell depletes. So to a certain extent you reach a point of diminishing return.

its certainly NOT a bad idea under driving a P7 IMHO. A cool/long running, stable (near linear-regulated) output floody 200 Lumens OTF can be very useful.

CPF'er Justin Case has underdriven P7's (IIRC) and has gotten good results. Check his threads from a few months ago if you're interested, he's got comparison beamshots to P4's, albeit from SF 2.5" turboheads.

Ok here are some body and beam shots before my mod:
http://www.flickr.com/photos/17769255@N02/sets/72157621207738850/



After shots are coming, just waiting on the parts!