XP-G R5

[old4570]

Well went to cutter to get my XP-G R3 ..

And what should arrive , some XP-G R5's - Got two R5's ....


So I could be the first one to own some R5's :devil:

 

[ICUDoc]

Good job old4570. We look forward to you comments. What are they going into?

 

[Greg G]

Great. So far all anyone has is charts. I'm looking forward to seeing some beamshots with different reflectors, and some lux readings as well.

 

[old4570]

I have a P60 drop in with a XP-E R2 in it ..

I will just swap out the Xp-E , and drop in the XP-G R3 and R5's

I will measure output and current ...

One of the R5's may stay in the p60 drop in , the R3 and R5 remaining ? One will go into my A20 EDC , the other possibly my L2micro [ Currently has XP-E R2 ]

 

[qwertyydude]

How well do the XP-G's work with XR-E optics?

 

[thegeek]

I'm quite curious on the tint of them. The binning that Cutter has covers everything from 5K-8.5K, which is making me a bit hesitant ordering anything.

 

[old4570]

How well do the XP-G's work with XR-E optics?

Mine is very nice ..

 

[csshih]

So I could be the first one to own some R5's :devil:

nope! 47s had samples loooong before most people :devil:

 

[old4570]

Ok

XP-G R3

This driver

Ok , Im using this driver in the pill , simply because it allows the LED to run at full power ... And thats the only thing that interests me ... OK

So here we go :

the XP-G R3 drew some 1.65A measured at the tail [ 90% Efficient Driver ] or about 1.5A to the LED ... So as near as I can tell ..

Its pushing about 260Lumen OTF [ Not taking sag or anything into account ] [ Same Pill / Driver / reflector / body etc as XP-E R2 set up ]
with a 18650 ...

Same set up with the XP-E R2 @ 1A = 200Lumen [ I own 3 XP-E R2's and none push more than 200Lumen OTF ]
So not bad .. A nice performance increase ..

 

[old4570]

XP-G R5

Im a little surprised , the first R5 tested draws a little over 2A ..

Turning the light on sees around 370Lumen but it quickly drops to 290 and slowly sags to 280 ... Looks like a lot of heat is going to go with this one , the pill warms up real fast

The XP-G R3 was far more stable , and not nearly as warm .. :huh:

Hmmmm , one more to go ...

 

[Greg G]

Keep it coming. I like it when people actually *dyno* an LED. :twothumbs

 

[old4570]

Ok , instinct told me to buy more than one XP-G R5 ..

This second one runs 1.7A [ Measured at tail ]

Starts of around 350Lumens , and eases of around ................................320 OTF ...... oo:
:rock: Genuine 300+ P60 Drop in ... [ well as so far as 60 seconds go ]

Early days !

That first R5 seems to really rock , 2A + Golly Gee !
If I glue it down with thermal epoxy it might be more stable , will see - will see !
Now I need another pill + driver

 

[znomit]

Now I need another pill + driver

And a camera!

Any pictures?

 

[old4570]

And a camera!

Any pictures?

Looks the same as a XP-E , but sure , some eye candy !

 

[old4570]

Two XP-G R5's

outside the pill is the 1st one that ran 2A+ / inside is the one that does 320 @ 1.53A [ 1.7A measured at the tail ]

 

[icaruz]

care to post some beamshot? if possible with comparison with the R2..:thumbsup:

 

[Greg G]

What meter do you have.....out of curiosity?

I can't wait for a dealer in the States to have these. :twothumbs

 

[old4570]

Just a cheap Light meter of Ebay , and 2 light boxes and some math .. Math was on the conservative side ...

I put the pill in another body , and output increased ...
I did have a KD driver , but thats the second dud driver KD has sent me ..
Geez , so I have no driver for a second pill ..

Beamshots when it gets dark ...

 

[old4570]

Ok , I did a second pill for the R5 that pulls 2A

It now sits just a little over 300Lumen with a 18650 @ 2A+
BUTT !!! , with a CR123A @ 1.4A [ 1.26A to LED ] its pumping 310Lumen .
So it looks like less = MORE !

This is what I thought ! To much energy = heat = less output .

 

[Greg G]

What is the Vf you are seeing?

Thanks for the info,