was concerned about a little visible buble next to the die. How will this affect my beam quality? I'm assuming the blue halo effect? It's going in a McLux PR so I wanted to find out before I waste my time. If it does make a big difference in beam quality would it be as noticeable if it were used with an optics, such as a fraen lp? Txs for any feedback!
How big is the bubble? If you use optics and it covers a quater of the die or more then you will have a dark spot in the beam. If you use a relfector I doubt it will be that bad. Power it up with batteries and put it in the reflector and test it out.
I had a Q3L on a BB module that had a couple bubbles in it. Bare or with a McFlood it looked fine, but as soon as you put optics in front of it you could see two distinct blue spots. I think Wayne's current run of Q3s are good...does anyone know if the rest of the R2s like this?
I have an earlier model R2H that has a bubble over the entire die!!! [img]/ubbthreads/images/graemlins/eek.gif[/img] [img]/ubbthreads/images/graemlins/faint.gif[/img] It makes a big difference in output, and it sucks a$$ in an optic. Reflectors don't show the defect as badly, but optics will.
I think the bubble are caused by pressure on the domes pushing out the silicone goo, then being relieved which suck air in.
I am in no way saying that Wayne sells inferior emitters. I think you'll get the same luck from him as you would from anyone else (unless you get a hand-picked emitter, or a light with one in it, which costs extra $$$). In fact, of four modules I have purchased, only one of them had bubbles that were annoying.
I guess your R2 had more light output? [img]/ubbthreads/images/graemlins/grin.gif[/img]
Man do I feel lucky and even more lucky [img]/ubbthreads/images/graemlins/buttrock.gif[/img].....
Didn't know bubbled luxeons popped out that often. Since I heard good feedback about HD-Q3Js I bought six of em' from ebay. Only one had a very, very, small bubble, seen if closley examined, and the rest none (visible to naked eye).
The HD-R2K I got from Dat2zip had a bubble about a fifth of the die size that kinda bothered me. It sat at the edge of the die, if I remember correctly.
I had ordered a DB700 w/ the R2K and got a BB700 by mistake. Since I had to send it back, I figured doesn't hurt to ask, so I mentioned it to them. Normally I wouldn't ask coz I know they don't have QC over them being made and it's not their fault. But lovingly, they agreed to exchange it! For this reason and the fact they got me a McLux 1X123BB after they were sold out and taken off the site is the reason why they're my favorite lighting retailer! [img]/ubbthreads/images/graemlins/bowdown.gif[/img] [img]/ubbthreads/images/graemlins/thumbsup.gif[/img] [img]/ubbthreads/images/graemlins/buttrock.gif[/img] Yesturday I noticed R2Ks were taken off the site and I mailed my package yesturday. Hope my replacment wasn't forgotten about.
BTW appreciate everyone's info. Helped alot. I've tried fraens & reflectors on a 5W I never used, that I stupidly made a bubble on a while back on 1/2 of the die. Now I'm using it in a Mag2C w/ it's reflector. Barely noticable. Txs!
I've got a R2H with a big, herking bubble in it. [img]/ubbthreads/images/graemlins/eek.gif[/img] Not only that, the die is off center. [img]/ubbthreads/images/graemlins/eek.gif[/img] [img]/ubbthreads/images/graemlins/eek.gif[/img] But since I'm using it in a flood reflector, I'm not going to worry about it. [img]/ubbthreads/images/graemlins/wink.gif[/img] The bottom line is the "Luxeon Lottery" applies to everyone, suppliers and customers alike. Would have been nice if it was prettier, though. [img]/ubbthreads/images/graemlins/icon23.gif[/img]
I think the bubble is actually formed in the process of applying the phosphor to the die. I seriously doubt it could be formed from mishandling, a bubble like that would appear near the edge where the lens seals against the base.