Custom reflectors?

[benighted]

I don't know if I'm posting this in the right section but I cree'd my brass lioncub and I'm looking for a better reflector for it.
The stock reflector works ok after I cut it down a little but I had to add a rubber gasket between the reflector and glass window to keep it relatively watertight and it still isnt as tight of a seal as I would like to have.

Anyways is there a longer version of the IMS 20(I think thas what it uses) or similar that would work better for my application?

Thanks in advance

-Clint

 

[bombelman]

Hey, not sure which light you have, but you might wanna use the McR-20.
If you take exactly 1mm from the back of the reflector, the metal ring should just fit into the reflector. I find this to give the most effective focus for the McR-series...

Regarding IMS (plastic) reflectors: Since the the Cree-emitters have a metal ring around the dome which gets hot, it can peel off the coating or even melt the reflector at the base. I have had this issue already. Luxeon's heat path was only to the slug and then to the heatsink. Since there is a metal ring around the dome, it will also collect heat and pass this on the the reflector. My advice, avoid using plastic reflectors...

Stock McR-20: 15.24mm
After sanding: 14.24mm

Don't have the IMS-20 specs-sheet with me, but if it's more then 14.24mm
then you already have what you have been asking for. Cheers !

 

[benighted]

Thanks a lot for the advice. Can you point me in the direction of a good source for the McR reflectors? By the way the light I have is this one.

 

[bombelman]

You can get your McR-reflectors here:
http://theledguy.chainreactionweb.com/allprods.php