3 P7s versus 9 XR E help

[Roland Gama]

Hello guys,
Which of these would give a brighter and tighter beam?
3 P7s running at 3 amps( the reflectors for them are difficult to get)
or 9 XR E Q5 running at 1 amp with 8 degree lenses arranged in a cluster?
I am looking for a good tight and bright spot.
Can any one with some experience throw some light on the matter?

 

[LED Zeppelin]

Sounds like you'll want the 9 Q5s.

Not exactly apples to apples, but these beamshots might help.

 

[Roland Gama]

Thanks for the reply Zepp.
I also feel the Q5s to have a tighter beam with the 8 degree optics.(I have a single one in use)
Will be using leddynamics 3021-D-E-1000 driver for 3 parallel 3 series connected LEDs powered with a 12 volts sealed battery.

 

[LukeA]

I can say from experience that 9XR-E w/8˚ optics will make a great beam from a small source.

10XR-E w/8˚ optics at 3m:

At night (1 sec. exposure):

The light:

 

[Roland Gama]

Hello Luke,
Thanks for the supportive pics. Curious to know how you drive the tenth LED.??? Do you use an over the counter driver or plain resistors?

 

[LukeA]

That's actually ten P60 dropins running in parallel off of a li-poly battery. There are some other electronics in there too to ensure safety.

 

[Roland Gama]

Thanks again.