What to build with 3 IMR C cells????? brightest!

[Mjolnir]

This might work:
http://www.essentialdepot.com/servle...l-Grade/Detail
It is solid NaOH though, so you would have to put it in solution; however I am not sure what molarity would be ideal for dissolving anodizing.
I also am not sure what the shipping costs are, since these are hazardous materials.
Chances are that 2 pounds of solid NaOH will last quite a while, so it might be cheaper overall.

[bigchelis]

I been using the FM 2000 lumen lamp with 3 IMR C cells in a 2D Mag and it is sooooo much brighter than the ROP 3854H.

The bad news is that I get a ugly black artifact in the middle of the beam with the following reflectors:

• FM 2in Deep smo
• 2.5in Throwmaster
• KD V3 Smooth reflector

What else can I do to get rig of that ugly center black artifact?

I didn't do any tail cap mods in regards to resistance and it has worked excellent by simply shortening the tail cap spring.

[bk737]

Are your bulbs inserted all the way down into the socket? Filament centered?
It sounds like maybe it is just the bulb, since you have the same issue with many different heads / reflectors. Any beamshots?

[Dioni]

Interesting report!
About that black artifact in beam, I also think it is relative to bulb centering.

We hope you can post some comparison beamshots soon.

[fivemega]

Originally Posted by bigchelis

The bad news is that I get a ugly black artifact in the middle of the beam with the following reflectors:

• FM 2in Deep smo
• 2.5in Throwmaster
• KD V3 Smooth reflector

What else can I do to get rig of that ugly center black artifact?

1)- What do you mean by black artifact? Is this dark spot in center of bright spill?
2)- Are you using stock cammed action focusing switch?
3)- What kind of bi pin socket are you using?

[bigchelis]

Originally Posted by fivemega

1)- What do you mean by black artifact? Is this dark spot in center of bright spill?
2)- Are you using stock cammed action focusing switch?
3)- What kind of bi pin socket are you using?

I was using the cammed version on all my bezels with the Fivemega kit to install the FM lamp.

The legs on the bulb would not allow me to push it all the way in, but MrGman cut the legs of lamp off a couple mm till it fits flush with the bi-pin kit.

Now, I get a perfect beam with probably the most beautifull beam I have ever seen from a incandescent. Even MrGman who generally dislikes all incandescents was very impressed. The lamp has to fit flush with the bi-pin kit to look perfect.

Regards,
Jose

[RichS]

Originally Posted by bigchelis

I was using the cammed version on all my bezels with the Fivemega kit to install the FM lamp.

The legs on the bulb would not allow me to push it all the way in, but MrGman cut the legs of lamp off a couple mm till it fits flush with the bi-pin kit.

Now, I get a perfect beam with probably the most beautifull beam I have ever seen from a incandescent. Even MrGman who generally dislikes all incandescents was very impressed. The lamp has to fit flush with the bi-pin kit to look perfect.

Regards,
Jose

Awesome report - this is great to hear! I have all the parts in route to do this exact build in a 2D, but with an AW soft-start switch - gotta extend the life of these $16 bulbs! I'm also going to do the tailspring mod to get the max juice to this bulb!

I have a Litho SMO and FM bi-focal SMO reflector I'm going to try with it. I'll post some beamshots compared to my 3C Mag85. From what I've read, the Mag09 is going to kick it's butt...