John2551, re the Dorcy, yes, mine also has the wires showing.
Closeup here:
http://www.flickr.com/photos/wossname/2172603544/
EDIT -- I see you reported Dorcys dying fairly fast here:
http://candlepowerforums.com/vb/showpost.php?p=2244510&postcount=63
Same one? These have yellow and blue wires; the LED is on a metal slug that's trapped in a slotted cylinder, and the wires go through the slots, you can look right through there. Some air circulation across the back of the slug I guess, maybe.
Did Dorcy respond and replace the ones you had die?
I put one in a 5D light and the other in a 4D light, both work just fine, making a nice long-throw spot.
EDIT, this also works fine in a 1xD using a NiCD cell and gives a decently bright light. It's an old Eveready
There's a chart on the card for the Dorcy "41-1642"
cell------V-----FromSource-mA-----PowerConsumption----ThroughLED-mA----estimated flux lumens
one----1.5---------490-------------------.735-------------------164--------------24
two----3.0...........410-------------------1.23-------------------285--------------37
three--4.5---------340-------------------1.53-------------------350--------------45
four---6.0---------280-------------------1.68-------------------380--------------47
five---8.0---------230-------------------1.84-------------------400--------------50
One of the two I got is noticeably yellower, the other more blue, almost pink (not the 'angry' blue-violet) and that's the LED not hte voltage; I swapped them between the 4-D and 5-D lights
EDIT -- I notice at an older thread that TrueBlue had a 'warm' and a 'cool' PR2 dropin. Are others also found with this difference? Personally I like the warmer ones.
Not bad if these hold up in use, for no-brainer any-battery loaner lights for emergency use, so I don't have any worry about people exhausting my NiCD cells and using alkalines in an emergency.
I am curious how these compare to the (many) other PR bulbs out there in real use, but good enough for now, they got my last two incandescent M@gs, 4xD and 5xD lights into the usable bucket for $12 apiece, and I've got lightweight NiCD D cells (I'm sure they're AAs in a big case) that hold charge tolerably well in them for intermittent use, and alkalines in the emergency bin.
For the 2-cell lights I like the Shoppe's PR2 deal much better:
http://theledguy.chainreactionweb.com/product_info.php?products_id=924
> CONDITIONED
found it explained in yet another thread about these:
SMJLED confusion explained - CandlePowerForums
Conditioned lithium batteries are Energizer e2 L91/L92 batteries that have been used in another device for a few minutes to bring the voltage down from 1.8V ...
www.candlepowerforums.com/vb/showthread.php?t=128865