Est. lumens output for P7 in HDS? MC-E?

[mcmc]

Howdy folks,

I'm thinkin' about having a P7 stuffed into my HDS B42XR, and was wondering if y'all would have an idea roughly how many lumens I'd be lookin' at on high?

Has anyone done this with a P7? or possibly an MC-E (would it do better in terms of no donut, throw, etc., due to the smaller die size)?

Thanks!

 

[Gunner12]

Output, I'm guessing 100+ lumen on max.

The Seoul P7 and MC-E are essentially 4 of their smaller cousins(Seoul P4 for the P7 and XR-E for the MC-E). This gives a larger emitting area which means a wider beam. But the higher output should mean the throw should be at least the same.

The smooth reflector means that there will be a doughnut unless the LED is not at the focal point.

I remember a few threads about a Seoul P7 in a Novatac and maybe one with the HDS.

 

[tebore]

On max it's about 200lm+ at the emitter. At least 170lms out the front. With an HDS that's a non-XR.

 

[mcmc]

Cool, thanks for the help guys. Since a P4 is about 100~120L, I was hoping the P7 would indeed be more than 100L =) But since it's not driving it really hard, 170-200L sounds about right.

Bummer though, both my HDS's are XR's. Tried to trade off for a non-XR to get a higher drive current, but no luck.

Cool! I love flood, and have an LDF lens, so a P7 mod may be a nice way to breathe new life into my SSC P4 modded B42XRGT.

 

[tebore]

You should give both the P7 and the MC-E a try. The P7 is bigger and will have less room for a reflector. The smaller MC-E might give you more room for a bigger reflector. Search for P7 and HDS in CFPMP.

 

[Gary123]

How does one distinguish an XR from a non XR?

I have a U60 that I was thinking of putting a P7/MC-E into.

 

[tebore]

How does one distinguish an XR from a non XR?

I have a U60 that I was thinking of putting a P7/MC-E into.

It says XR on your light if it's an XR.

 

[sailor612]

What kind of reflector do yall suggest for 8deg or less MC-E? I need to find a good reflector that is approx 52mm for a Mag mod

 

[Gary123]

... Tried to trade off for a non-XR to get a higher drive current, but no luck.

Its my understanding that the eXtended Runtime or no XR had nothing to do with higher drive current, but only the efficiency of the particular emitters that Henry used. I don't believe different drivers were used.

But I can't say that I truly know for sure.

 

[tebore]

Its my understanding that the eXtended Runtime or no XR had nothing to do with higher drive current, but only the efficiency of the particular emitters that Henry used. I don't believe different drivers were used.

But I can't say that I truly know for sure.

You're wrong, it does have to do with the emitter because a more efficient emitter requires less current and since the light is tuned for a specific output the calibrated power output from the module is lower than a non-XR. This calibrated power doesn't change through emitter swaps.

 

[darkzero]

I also did a P7 HDS. HDS EDC SSC P7 Mod. Wasn't worth it in my opinion, I'd rather have a P4 in the HDS. The orange peel on the Mcr-20 is not heavy enough to eliminate the donut hole, I had to sputter it to to get it where I was satisfied.

However, I am working on something that will be worth it. It will eventually be for sale too.

You're wrong, it does have to do with the emitter because a more efficient emitter requires less current and since the light is tuned for a specific output the calibrated power output from the module is lower than a non-XR. This calibrated power doesn't change through emitter swaps.

I always wondered about this. Can this be confirmed?

 

[tebore]

I always wondered about this. Can this be confirmed?

Well back in the days when the Lux V was the "New" tech people had the idea to swap it in to their HDS. Between one member's work and Henry's input it was "confirmed". I say "Confirmed" because it wasn't tested with scientific measures but from piecing together what Henry said and the expected results of swapping in a Lux V based on what Henry said would happen.

Also when you swap 2 LEDs(as equal as possible) in to an XR and non-XR the runtimes are similar to before the swap and the non-XR displays a higher lux.

 

[darkzero]

Well back in the days when the Lux V was the "New" tech people had the idea to swap it in to their HDS. Between one member's work and Henry's input it was "confirmed". I say "Confirmed" because it wasn't tested with scientific measures but from piecing together what Henry said and the expected results of swapping in a Lux V based on what Henry said would happen.

Also when you swap 2 LEDs(as equal as possible) in to an XR and non-XR the runtimes are similar to before the swap and the non-XR displays a higher lux.

Thanks for the info. Now I have to decide wether to keep the XR driver or non-XR driver. :thinking: Do you know how much difference the runtime is between these two assuming both had similar emitters?

 

[tebore]

Thanks for the info. Now I have to decide wether to keep the XR driver or non-XR driver. :thinking: Do you know how much difference the runtime is between these two assuming both had similar emitters?

A 50% increase (20min vs 30mins) in runtime for an XR over a non-XR so can we hypothesize that there is 50% more power going out of the non-XR driver?