That's not how I read it - I think he's saying that dedoming will kill it as it does for XR-Es.
But it wouldn't be the first time I've been wrong.
Im very impressed with the 95,000 dedomed lux as apposed to 50,000 with the dome
This seems wrong, that's not how I understand the optics. Most likely he had the wrong focal length with the dome on.
I think the dome is at least partially a beam spreader to get the125o beam angle. Like the SST LEDs the "intrinsic" beam is narrower.
this may explain some of the dumping that's been going on .
An LED that may make everything else look lame .
didn't expect that
Yes, but even with a wide beam, it only means a larger hotspot (to the detriment of spill), not a brighter one, similar to xp-e vs xr-e. It does, however, change the distance to the image of die.
Get a deep enough reflector of appropriate diameter and focal length and you'll focus anything,
I was already assuming optimal focus for the remarks about hotspot/size. I said that he got the measurements he did because it wasn't focused as well for the domed measurement as the de-domed one.
The other possibility is given the measurement are made at non-infinite distance, one is focused to the meter better to provide the larger number.
LOL! I just read it again and still believe the dedomed (say that 3 times fast) was stable at 3A but got killed at 4A. Yeah I know... it needs much more testing on the bench, and over a much longer duration. For the price of XM-L's, a few shortened hours of life wouldnt matter much to me. Besides, im beginning to love my soldering iron! I have a MRV that I popped the dome off of (XR-E) and it has lived many hours of continuous use at 1.6A. Maybe its the luck of the draw, and also how well sinked the emitter is. Either way, this new emitter seems to be putting some of the anticipation back into our hopeless sick disease.
You got it!
Hopeless disease is about it....
For the price of XM-L's, a few shortened hours of life wouldnt matter much to me.
I think the more immediate risk to de-doming is that the gelatenous stuff that's the under dome becomes unprotected and also host to the phosphor. I de-domed a cree and even after immediately putting it back on, it wasn't quite the same as before.
Like you, I removed my dome by accident and tried to stick it back on. The beam was so ugly that I just removed it completely. I took a toothpick to the gelatinous stuff and it was easily removed.
I will see about ordering from Ebay , [ bare emitter ]
The P60 pill is $20 now ... So you may want to buy a 502B for $25
the 16mm base will be ok for P60 builds , but for smaller EDC lights ?? , 14mm would be better ... Just waiting to hear back from the ebay seller ....
let us know!
i want 14mm!!!
ill buy a crap load!
The ebay seller only has them on 16mm basses , I have ordered 2 to play with ...
Now which lights will become XML ? hmmmm [ Solarforce L2X @ Ultrafire A20 ?? ]
Another one just popped up and its in one of my favorite P60 hosts.
What kind of beam pattern is that? Just a big hotspot with no spill? Or all spill with no hotspot? Or just a bad picture? I'm not sure what you get with a flat-bottomed reflector like that and a big LED like this.
Bad picture. It's the same type of reflector as any other. The flat base does nothing. The hotspot will be small because the apparent area is large, if the emitter is well focused.
I can't wait for reviews on some of these lights!!
Well, I guess this will take longer. I'm waiting for a DX package. It left HK today, after it was sitting there for five weeks. Horrible!