What is a star? ( and some other stupid questions )

PaulHsu · Aug 5, 2007

Let me apologize in advance for my ignorance. :thinking:

1. What is a star?

2. Is the Luxeon I, V, III & K2 a progression to the Rebel?

For example is the Rebel superior in all aspects to the previous models of Phillips Lumis?

3. Also does the 3w and 5w mean 3 and 5 watt? Is that the minimum power needed to run them?

Trashman · Aug 5, 2007

PaulHsu said:
Let me apologize in advance for my ignorance. :thinking:

1. What is a star?

2. Is the Luxeon I, V, III & K2 a progression to the Rebel?

For example is the Rebel superior in all aspects to the previous models of Phillips Lumis?

3. Also does the 3w and 5w mean 3 and 5 watt? Is that the minimum power needed to run them?

1. The star is what the emitter comes mounted on. They are in sheets or rolls.

2. I think you can say that those LEDs are a progression toward the rebel.

3. I'll probably give the wrong answer for #3, but I think that is what they are supposed to be able to output at a specific current.

LukeA · Aug 5, 2007

PaulHsu said:
3. Also does the 3w and 5w mean 3 and 5 watt? Is that the minimum power needed to run them?

That's the maximum current they're designed to run at, IIRC.

An LED is mounted on a star to simplify soldering and heatsinking.
SSC emitter on Star
bare SSC emitter

DonShock · Aug 5, 2007

#3 Yes, that it their APPROXIMATE power output at the rated current.

For example:
Luxeon 1W: 350mA rated current X 3.5V forward voltage = 1.2 watts power output
Luxeon 3W: 1000mA rated current X 3.5V forward voltage = 3.5 watts power output
Luxeon 5W: 750mA rated current X 6.5V forward voltage = 4.9 watts power output

VidPro · Aug 5, 2007

without getting pickey,
its the power they consume

when run at the specs they were designed to operate at, which doesnt always happen IN the devices they are used in.

What is a star? ( and some other stupid questions )

PaulHsu

Newly Enlightened

Trashman

Flashlight Enthusiast

LukeA

Flashlight Enthusiast

DonShock

Flashlight Enthusiast

VidPro

Flashlight Enthusiast

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