Future of dive lighting with Cree

Wurkkos

MrNaz

Enlightened
Joined
Jul 20, 2006
Messages
244
Location
Melbourne, Australia
Given developments in Cree LEDs over the last couple of years with the XP-G and now XM emitter packages leaning toward larger die sizes putting out more lumens but with lower apparent surface brightness, what does the future of focused flashlights look like?

There are plenty of very good, very cheap optics for XR-E package LEDs out there, but the XR package looks like it has hit the end of the line. I use $1 Cree optics for the XR-E package from DX, and they work a treat.

My favorite optics for dive light applications are TIR optics as they seem to give the lowest amount of spill and the highest amount of forward directed light.

So what are we going to do when the XR-E R2 emitters that currently power our underwater lights become obsolete? Are there any really good optics that can focus an XP-G the same way that an XR-E can be focused and that don't cost too much?
 

Packhorse

Flashlight Enthusiast
Joined
Nov 29, 2007
Messages
1,912
Location
New Zealand
I too am a big fan of the XR-E, but its far from the only LED suitable for dive lighting.
While its great for small single emitter lights I think the way forward for primary lighting lies elsewhere.
I have recently finished a SST-90 based aspheric mag and also have been playing around with a SST-90 or SST-50 light head with a reflector.

While there are disadvantages of using large die LED's there are also advantages of using high power single LED's.
In saying that I really wish there was a 7.4v SST-90 type LED with a beam angle of 50 degrees or less (for use with an aspheric) or super wide angle (side emitting) LED for use with a reflector.
 

MrNaz

Enlightened
Joined
Jul 20, 2006
Messages
244
Location
Melbourne, Australia
I too am a big fan of the XR-E, but its far from the only LED suitable for dive lighting.
While its great for small single emitter lights I think the way forward for primary lighting lies elsewhere.
I have recently finished a SST-90 based aspheric mag and also have been playing around with a SST-90 or SST-50 light head with a reflector.

While there are disadvantages of using large die LED's there are also advantages of using high power single LED's.
In saying that I really wish there was a 7.4v SST-90 type LED with a beam angle of 50 degrees or less (for use with an aspheric) or super wide angle (side emitting) LED for use with a reflector.

I'm not a fan of aspheric lights, I much prefer well-focused TIR optics. They collect the warmer light that is emitted from the sides and mix it in resulting in a nicer beam (may or may not be totally psychological given that the warm tones are lost within a few feet of water).

What are the available optics and reflectors for the SST-90 and 50? Is there as wide a variety of optics available for any other LED line as there is for the XR-E?
 

Klem

Enlightened
Joined
Mar 26, 2010
Messages
581
Location
Perth Australia
"...the future of focussed flashlights looks like?"

Like the old camera flashbulbs I would say the XR-E will be available for some years yet, and for sheer lumens output, there's always HID.
 
Top