ARC4+ SSC U2SVOH Mod

[koala]

Recently, I modded a ARC4+.
I've done many swap but this is a mod request with a VO bin that I have never tried before. I own a ARC4+ with a SSC WO bin myself.
I must say I am quite pleased with the creamy white tint, I may actually move to VO bin in the future.
Check out the beam shots. All at max output, make your own conclusion if the mod is worth.

 

[karlthev]

Very, very nice mod! I have several Arc 4+ the design of which I believe to be classic. I am lead to believe that getting them down to the point of modding is very difficult however.


Karl

 

[Cuso]

How did you deal with all the epoxy ?? Nice mod...

 

[greenLED]

Man, that was fast, Vince!
Great job, as usual.

If I ever get my paws on an Arc4, it's going straight to you for a transplant.

 

[orcinus]

Ditto

 

[koala]

How did you deal with all the epoxy ??

Highly elevated and regulated temperature :naughty:, lots of them.

Man, that was fast

I have fabricated an opening tool which makes life easy but not all Arc4+ can be open. If the tool slip, it could grab the PCB instead of the inner-can then it could be a disaster.

 

[Cuso]

Hmmmm looking at that picture of the module, it looks like the size of a P7 ..Have you measured that cavity.??:devil:

 

[TIP AND RING]

That is a sweet mod. :thumbsup:

 

[Christoph]

Now I find out it can be done:hairpull:great job. I wish I could have done that to mine before I sold it.
C

 

[greenLED]

If the tool slip, it could grab the PCB instead of the inner-can then it could be a disaster.

Assuming a worst-case scenario... if the stock PCB goes what options would be available to replace it?

 

[koala]

Hmmmm looking at that picture of the module, it looks like the size of a P7 ..Have you measured that cavity.??:devil:

You know what?... It will fit. The cavity is about 13mm and the SSCP7 widest is at 12.2mm. Just need to build a spacer for heat transfer, and enlarge the built-in reflector(note: irreversible mod).

I don't like that. I believe in the near future, we will definitely have higher lumens LED in the Luxeon form factor. Modding the reflector is definitely a heresy for a classic light like the ARC4+. The main purpose here is to retain as much 'heritage' as possible while increasing output.

I should mention in the first post, regarding the mod, the circuitry was never removed from the internal can. The epoxy is still intact and the circuitry remains potted. All I did was remove a layer of epoxy covering the top of the light engine that also covers the Luxeon. Then do the swap.

greenLED - PM sent.

 

[Cuso]

You know what?... It will fit. The cavity is about 13mm and the SSCP7 widest is at 12.2mm. Just need to build a spacer for heat transfer, and enlarge the built-in reflector(note: irreversible mod).

I don't like that. I believe in the near future, we will definitely have higher lumens LED in the Luxeon form factor. Modding the reflector is definitely a heresy for a classic light like the ARC4+. The main purpose here is to retain as much 'heritage' as possible while increasing output.

I should mention in the first post, regarding the mod, the circuitry was never removed from the internal can. The epoxy is still intact and the circuitry remains potted. All I did was remove a layer of epoxy covering the top of the light engine that also covers the Luxeon. Then do the swap.

greenLED - PM sent.

Yeah I forgot about the built-in reflector...

 

[tebore]

You know what?... It will fit. The cavity is about 13mm and the SSCP7 widest is at 12.2mm. Just need to build a spacer for heat transfer, and enlarge the built-in reflector(note: irreversible mod).

I don't like that. I believe in the near future, we will definitely have higher lumens LED in the Luxeon form factor. Modding the reflector is definitely a heresy for a classic light like the ARC4+. The main purpose here is to retain as much 'heritage' as possible while increasing output.

I should mention in the first post, regarding the mod, the circuitry was never removed from the internal can. The epoxy is still intact and the circuitry remains potted. All I did was remove a layer of epoxy covering the top of the light engine that also covers the Luxeon. Then do the swap.

greenLED - PM sent.

Well the dome on the K2 TFFC is the same size as the Lux III. With some trimming of the casing it'll fit in the hole. It should give you a better beam than a P4. What do ya think?