Which is brighter: 26K mcd or MJLED ?

Does your U2 have dust/dirt on it's reflector or inside it's lens?

  • 26000 mcd LED

    Votes: 0 0.0%
  • MJLED

    Votes: 0 0.0%

  • Total voters
    0

shiftd

Flashlight Enthusiast
Joined
Nov 17, 2002
Messages
2,261
Location
CA
Mjled is most likely /almost definitely brighter, since the 26k mCd is just like ordinary 5mm led with tighter optic.
 

rdshores

Enlightened
Joined
May 3, 2004
Messages
400
Location
Vermont
Here is some data I took:

LUXEON III TWOJ
20ma 3.0L
30ma 4.5L
40ma 6.0L
50ma 7.4L
60ma 8.7L
70ma 10.0L
80ma 11.3L
90ma 12.3L
100ma 13.6L

MJLED 2ND BATCH FROM LAMBDA
20ma 2.77V 4.5L
30ma 2.82V 6.2L
40ma 2.86V 7.8L
50ma 2.90V 9.2L
60ma 2.92V 10.4L
70ma 2.95V 11.6L
80ma 2.97V 12.5L
90ma 2.99V 13.5L
100ma 3.0V 14.5L

SMITTY 26K
20ma 3.27V 4.5L
30ma 3.39V 6.0L
40ma 3.48V 7.4L
50ma 3.55V 8.4L

LSDIODE
SEA GREEN 50ma 3.40V 2.0L
GREEN THC3 50ma 2.74V 6.5L
WHITE THC3 (GREEN TINT)
20ma 2.70V 2.0L
30ma 2.77V 3.0L
40ma 2.82V 3.8L
50ma 2.86V 4.5L
60ma 2.89V 5.2L
70ma 2.91V 5.8L
80ma 2.94V 6.3L
90ma 2.95V 6.7L
100ma 2.97V 7.1L

WARDEN_JP2002 26K
20ma 3.18V 3.6L
30ma 3.33V 4.8L
40ma 3.45V 5.8L
50ma 3.55V 6.6L
 

rdshores

Enlightened
Joined
May 3, 2004
Messages
400
Location
Vermont
The readings are from a homemade light box and are just relative numbers, not calibrated lumens.
 

AuroraLite

Enlightened
Joined
Nov 11, 2004
Messages
851
Location
HK
Hi, GreenLed.

I'd make a Lux I PYAH BB100 sandwich, and have a MJled installed. Both with new batteries, no doubt about the lux I is much brighter than the Mjled.

Of course, on the other hand, IIRC, I don't remember the Mjled is actually drawing the full 100ma; so it is not a completely fair comparison. /ubbthreads/images/graemlins/wink.gif

I had recently worked with the 26k leds for the minimag mod, and comparing 26k with Mjled is going to be a little 'different' since they probably have very different Vin and Iin. But if in terms of 'relative' brightness, I do think Mjled will do better in terms of lumens/watt or lux/watt(too lazy to do the calculation /ubbthreads/images/graemlins/wink.gif )
 
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