Ultrafire W200 conversion

[Packhorse]

No it will not fit with out alot of modification.


I use 2 18650's.
My fav mod is to use a 2P2S MC-E and use a AMC driver. Gives good efficiency and run time at a constant brightness then it slowly dims down as the battery runs flat.

 

[350xfire]

No it will not fit with out alot of modification.


I use 2 18650's.
My fav mod is to use a 2P2S MC-E and use a AMC driver. Gives good efficiency and run time at a constant brightness then it slowly dims down as the battery runs flat.

So I guess the AMC is small enough to fit in the upper sleeve?

I'm just playing with one right now and figured a direct drive P7 with alkalines. Only problem is going to be the run time...

 

[jspeybro]

I use 2 18650's.
My fav mod is to use a 2P2S MC-E and use a AMC driver. Gives good efficiency and run time at a constant brightness then it slowly dims down as the battery runs flat.

Are you using 1400mA AMC7135 drivers from kaidomain? is the input voltage of 2 18650's not too high for these drivers or will they just be a little less efficient when the batteries are charged?

 

[Packhorse]

See post #36 of this thread

 

[Packhorse]

So I guess the AMC is small enough to fit in the upper sleeve?

I'm just playing with one right now and figured a direct drive P7 with alkalines. Only problem is going to be the run time...

It requires a custom pill to be made.
Its a fair amount of work. A solid piece of copper sits under the LED. the base in hollowed out a bit and the AMC board sits in there held in by solder around the rim to the copper.
The OD is them machined down a little at the base and a coper tube slips over it.
his one is nearly finished.

 

[jspeybro]

They never used a SSC P4 but Cree XR-E P4 bin.

you're right.

If you are changing LED's you could try a XP-G R5 for a bit more light.

would this be directly driven with 3AA batteries? did anyone try this already?

 

[canyoinger]

I'am looking for a replacement reflector of W2oo after the old reflector has been destroyed by flooding. Who knows where can I get it?

 

[Packhorse]

For those with access to a lathe here is a easy way to mod a W200.
You need a Aluminium tube OD 22mm or more and ID about 18.5mm or enough to fit a 18650 cell. If you are running AA's you could probably use the original pill.
You will also need a P60 drop in from DX/KD. You should be able to use any P60 drop in you want. I used a XP-G for this one.

You need to machine off the taper behind the threads on the drop in.
Then machine a thread into one end of the tube (m20x1mm I think).
Machine the tube so it fits into the head (21mm) but has a lip at the bottom end.

Thread the drop in into the tube but leave some thread exposed.

Thread the reflector on to check it can screw all the way down. If needed you can cut a 1mm or 2 off the end of the reflector although I didnt have to.

Unscrew reflector and fit drop in into head and then screw reflector back on.

This modification was brought to you by the letters P and H and the number 40.

 

[lucca brassi]

Nice I just made cooper inserts (heatsink - original are made from aluminium ) for leds very similar to that with thread 30 x 1,0mm but then I made ''poop''

I have these inserts galavanized with silver (very nice ) .... but galvanization bring me cca 100um silver on Cu base and .... I can not screw this heatsink in lamp head . :devil:

I have to somehow remove silver from threads down. I don't realy know what to choose :
- plastic hard brush (could be ok)
- sanding ( I'm afraid to destroy threads )
- brass fine brush with proxxon ( i think that should be best )
- chemical etching ( could made more poop or maybe not something on
H2SO4 - that not destroy Cu)