Run-Time Plot - TT-3C

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Roy

Roy

Farewell our Curmudgeon Administrator
Joined
Apr 14, 2002
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This runtime plot is for a Streamlight Twin Task 3C flashlight using Everactive alkaline batteries.

Equipment used is a photocell and a Radio Shack 22-805 multimeter with a PC interface that is using ScopeView software (V 1.08).

The vertical axis is in ma and the horizontal axis is in time.

Be aware that your actual battery milage may vary from that indicated by this runtime plot.

TT-3C Xenon
50% Brightness at 136 minutes
tt3c-inc.jpg




TT-3C 6 LED
50% Brightness at 18 Hours 3 Minutes.
tt3c-6led.jpg




TT-3C 3 LED
50% Brightness at 33 hours 36 minutes
tt3c-3led.jpg
 
I have added the runtime plot for the 6 LED mode. At the end of 41+ hours, when I stopped the plot, the TT-3C was still producing enought light to light up dark corners and under desks and such!
 
Well, my gosh! I'm pretty new to LEDs but could we expect the 3 LED setting to last to twice as long? Close to twice as long?

That's really incredible.
 
I have added the runtime plot for the 3 LED mode. At the end of 64 hours, when I stopped the plot, the TT-3C was still producing enough light to light up dark corners and under desks and such.
 
Thanks Roy! I don`t suppose you have a "D" TT or/and a 1 123 batt powered TT? It would be interesting to see the plots on these as they use step-ups.
 
/ubbthreads/images/graemlins/smile.gifYou suppose correctly! I can't afford to buy them all and I'm not famous enough to have companies send me lights to test. /ubbthreads/images/graemlins/frown.gif /ubbthreads/images/graemlins/tongue.gif
 
Do you have any comments on the beam quality of the incandescent bulb, since there are holes in the reflector?
 
Wow, great information! Thanks, Roy.

Shankus, I had a similar question and stumbled upon a review of the SL Twin Tasks that has photo comparisons of the various twin tasks in their two LED brightness modes as well as the incandescent mode. It's at Flashlight Reviews dot com.

I have decided to go ahead and order one of the 3C models. I like the fact that it's beam is more tight than the 2D and measures 1300 Lux at the center at the testing distance, where the 2D measured 740 or so. That way, when I use the incandescent I can reach out there quite a bit further.

I think I've gone back and forth on which Twin Task more than I have on any other light I've pondered.
BC
 
My daughter was over visiting the other day and saw the TT-3C. She picked it up, hefted it some, and announced, "You could hurt someone with this thing!". /ubbthreads/images/graemlins/grin.gif
 
Streamlights claim for the LEDs is 160 hours (wether 3 or 6 LEDs is not specified).

And 5 hours for the Xenon.

I've usually considered their claims pretty close to the truth, but they overshot by a pretty wide margin this time.
 
artar...here's your picture!
bulb-3c.jpg


JJHitt...remember, we don't know what their definition of "useable light" is! Also, I did not run the plots all the way out to dead battery, I ran the plots out to where I'D change the batteries.
 
Kenb-I've got the 1 L, not the 2D model. Went on a beach vacation last month, and wound up carrying the 1L more than the others (3AA TT,2L TT, 3C TT) and used it a LOT. I have been patiently waiting for it to dim, or show signs of ageing, but still on the same 123.

My 3AA 1 watt SL Lux is like the Energiser Bunny, it just keeps running, and running.... I think I had four or five hours of use on the batts. Still bright . Changed the batteries tonight, and comparing beam brightness, it was a bit better, but not much.

Use is INTERESTING; the 3C is brightest, and longest run time, but you carry the ones you LIKE. My 2 L TT is brighter in all modes than the 1 L, but I find myself with the 1 L more.

The MOST carried is the 3AA Lux, and TT model.

If the 123's had twice the Mah that they have, it might change.
 
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