Pretty impressive ---- Luxeon Rebel Tri-Emitter, 540 Lumens @ 700mA

[SunnyQueensland]

I'm not sure if I have come late to the party or not but these are simply amazing...

Are they available yet in a flashlight? I imagine it would need a sophisticated reflector? :shrug:


Quote:

The Endor 7007-PWC-10-3 Rebel Star light module by LEDDynamics™ features three pre-mounted Luxeon® Rebel cool white LEDs that can generate 300 lumens at 350mA and 540 lumens at 700mA. The star base is footprint compatible with standard Luxeon Star LEDs and features electrical isolation between the Rebel LED and the base with solder pads that can be solder to using standard hand soldering tools.
The Endor Rebel Star offers:

• One of the industries brightest LED modules with over 540 lumens at 700mA
• Long life and lumen maintenance - 50,000 hours life at 700mA with 70% lumen maintenance
• Can be soldered using standard hand soldering tools
• Electrically isolated heat sinking surface
• Thin, low profile package - only 3.9mm thick
• Simple, clearly marked electrical connections
• Drive flexibility with input currents from 350mA to 1000mA
• Lead-free reflow solder JEDEC 020c compatibly
• Mount with standard #4 screws
• pb free reflow solder connections
• Autoclave compliancy - JESD22 A-102
• RoHS compliancy
• Fully dimmable

This is not hot-linked...

 

[W-c.Scenario]

They've been around for awhile,
I guess we dont see so many using it since
theres no optics or reflectors made for it yet.
CPF-member ambientmind modded a Ultrafire c2 with it, heres the thread
LINK

 

[Bror Jace]

How big (across) is that thing? It's be nice if they'd have put a small piece of a ruler to measure the millimeters so people can pick hosts ahead of time.

 

[adirondackdestroyer]

When I first heard about these I thought the modders would go crazy with them, but for whatever reason there really hasn't been much done with them so far. It might be because there haven't been any reflectors specifically made for it, or maybe because they worry about heat problems. Either way I think a single 18650 light using this star would be unreal!

 

[FlashKat]

The data sheet provides all of the specifications http://www.luxeonstar.com/7007-endor-datasheet.pdf

How big (across) is that thing? It's be nice if they'd have put a small piece of a ruler to measure the millimeters so people can pick hosts ahead of time.

 

[W-c.Scenario]

When I first heard about these I thought the modders would go crazy with them, but for whatever reason there really hasn't been much done with them so far. It might be because there haven't been any reflectors specifically made for it, or maybe because they worry about heat problems. Either way I think a single 18650 light using this star would be unreal!

Another reason might be its forwardvoltage, 9 something.

 

[FirstDsent]

I'd love to see Lumileds make a 2x2 emitter using four Rebel dice in the same configuration as the Luxeon V. The Lux V had four Lux I dice in one emitter. They could use the k2 platform. It would kill at around 720 Lumens.

Bernie

 

[shinbone]

I'm pretty sure I remember someone posting a thread in the mod forum using one of those in an Ultrafire C2 light. It is impressive as a flood light and had some decent throw too.

Found thread:

http://www.candlepowerforums.com/vb/showthread.php?t=186239

 

[Outdoors Fanatic]

Put that behind some optics and you have a beast.

 

[2sparky]

Haha can you say mule on steroids...lol

 

[mr.squatch]

When he says he did it direct drive, does that mean no driver at all? Like + to switched battery + and - to ground? If so, I can even do that. lol. I think I may have just found yet another must have project. sonofa.


g

 

[TORCH_BOY]

They look like they would be hard to Focus

 

[easilyled]

Maybe this is off-topic but the imminent arrival of the Seoul-P7,
a 4-in-1 die led capable of reaching over 400 lumens in output quite
easily will probably be much more useful for usage in flashlights and mods
than this luxeon tri-emitter because of the compact format.

I think its due to arrive in March/April.

 

[Luminescent]

Actually this design is only useful for flood.

For other purposes the design is quite awkward, because the separation between the emitter dies is too close to use separate reflectors (as you see in many multi-LED lights), but much too wide for any kind of decent focus and throw with a single reasonably sized reflector. Remember, the hot-spot is basically a slightly out of focus image of the die itself, so with this design you would have to use a HUGE reflector then throw it WAY WAY out of focus to get the spot images to merge. Even with a very large reflector (4 to 6 inches across), the beam is likely to be an ugly three lobed monster because the separation between the emitter dies is many times the width of the die (which is less than a millimeter).

Also, this design concentrates the heat more than a cluster of separate reflectors with separate emitters.

I think the coolest design for a cluster light is to give each emitter its own reflector in a classic honeycomb cluster of 7 small 18mm to 20mm round reflectors. This way, each reflector can have its own perfectly focused and centered emitter.

.o o.
o o o
.o o.

This type of cluster can easily crank out over 1000 lumens in a head the size of a standard D-Cell Maglight, and still have very good throw with great beam quality.

 

[Illum]

I think the coolest design for a cluster light is to give each emitter its own reflector in a classic honeycomb cluster of 7 small 18mm to 20mm round reflectors. This way, each reflector can have its own perfectly focused and centered emitter.

are you referring to the same concept founded by wiseLED in focusing their K2s?

 

[Luminescent]

are you referring to the same concept founded by wiseLED in focusing their K2s?

WiseLED does have some cluster designs, but I am not sure it's correct to say they 'founded' this idea, because cluster lights have been around for quite a long time (think about all the 5mm LED clusters).

Of course 5mm clusters don't usually have individual reflectors, but it's pretty obvious for anyone that understands optics that for power LEDs that need reflectors, each LED needs its own reflector. Once you realize that separate reflectors are best for 1W and larger class power LED emitters, the cluster reflector idea is pretty obvious.

Even Teralux has jumped on the bandwagon with a 3 emitter / 3 reflector cluster (Teralux TLE-300).

As far as the WiseLED 7-way cluster goes, I must confess I am not overly impressed with the WiseLED 7 emitter design because they don't seem to be taking advantage of the biggest advantage of the 7-way cluster concept, which is its high 'packing density' that should let it get the most total reflector area into the tightest possible space (allowing the largest possible reflector per emitter will give the best possible throw).

In the WiseLED light's head there seems to be a lot of wasted space between the reflectors, so the light will not have as much throw as it could with slightly larger reflectors for each emitter.

 

[Fallingwater]

Another reason might be its forwardvoltage, 9 something.

You sure? They look like they have separate connections for each emitter. You could just wire them in parallel.

I guess the main factor against it is its price.

 

[jufam44]

How much are these in terms of cost?

 

[hopkins]

The datasheet is unclear about the 3 power connection points.
Are they common or can you wire it to turn on 1,2, or all 3 leds
at your whim?