Texaspyro's Handmade Multi-Emitter DIY Contest Entry

So does this driver have a strobe or not? (I really hope so...)

It has MANY different strobe and blinky modes. The firmware is basically the same as my SRK driver. The three main strobe modes are a slow 10Hz mode, a fast 16 Hz mode, and the random strobe that varies the timing and intensity of the pulses. There are also a couple of bike strobes that don’t blink full off, several beacon modes, and the programmable Morse code mode. You can program the driver to select the modes/order that you want to use.

Added a wall shot to the 4th post…

Cool, roughtly equivalent to the 4 T5 fluorescent 4 footers I put in an 8’ fixture. 17,000+ lumens. A very nice room light! Orrrrr, a great bug attractor for going fishing! :slight_smile:

Very nice wall beam shot! Now get that thing outside and take some “let’s light up everything” beamshots :wink:

Great job on the finish work. If you water proof the array it looks like it would make a dandy hot water birdbath. Or maybe even deep fry the turkey. That is some insane amount of power.

Thanks for the latest update. Is there other members sitting and reading about this light with a smirk on their face and every few seconds a guttural noise emanates from the bottom off their throat out through half opened smirking lips?

Funny you should mention that… I had it sitting up outside (turned off) for a while. When I came back, a cockroachy thing was in the bowl. Let there be light! And He saw the light! And it was good! Smokin’ good. J)

+20,000

Edited post 2 with some actual voltage vs current numbers for the assembled light. At 7A drive level, looks like it does 21,000 lumens. I can’t get it in my sphere for a real test. To get 7A, I fully charge the battery pack then use the “storage charge” function on the charger to drain the pack to 3.94 volts/cell. I have run the array at 10 amps (briefly) and it survived… doesn’t seem like a wise thing to do for long.

Good mod! I miss the golden and silver eras of rock when I heard this LED Zeppelin track.

I did a little more testing at 7 amps/220 watts. It heats up rather fast. The fan is going full blast after a minute or so. It starts going into thermal stepdown after a couple of minutes. Seems to level off at around 6 amps/180 watts.

Looks like a an lamp lol. Outdoor shots PLEASE!

I'm sorry if this has been covered before, and I must admit I am being lazy, but how does this compare to say - the amount of MT-G2's (or XM-L2 etc) that you would need to have an equivalent output?

I mean - are discreet emitters like that more efficient than these arrays, and if so would it be a better bet to use multiple emitters rather than one large array? I'm thinking here of the drop LED efficiency as the input power increases. More LEDs at lower power > less LEDs at higher power.

MASSIVE generalization of course, but I think you can understand what I'm rambling on about...maybe

The MTG2 is a multi-emitter array. Arrays are more efficient than single emitters because each LED is driven less hard than an equivalent single emitter. The C9000 has 81 (?) LEDs in its array. When driven at its published drive level, each LED is around 1 watt.

That picture of it next to the srk cracks me up!

Try not to get arrested by ATF when taking outside beamshots. lol

Awesome! Can't wait for beam shots!

'So much flood even Noah would despair'. LMAO!

[quote=texaspyro]

Sorry I screwed that question up. I'm not really sure I asked it correctly. I definitely got my terminology wrong. Basically, for the same power input would you get more light out of say multiple MTG/XML/XPG etc emitters, than one of these larger arrays? For some reason I have always been under the assumption that these large arrays are not as efficient as their smaller cousins. Probably wrong and certainly never based of any actual research

You could try one of these bad boys in a car mounted light mattaus, boost voltage to 30 and turn the night into blazing daylight! The voltage requirements would seem to be the problem from what I can see. Output is certainly impressive! But with heat sinking and input power being what they are, you’re certainly not going to run this in a pocket light!

The beast Texas Pyro made is ~13 inches wide and ~18 inches tall with a 4” diameter battery tube! “Flashlight” is not really the descriptive word of choice…Photon Cannon?

Also of note is run time before step-down, even fan cooled. So this shows that massive heat sinking in combination with air cooling or liquid cooling would be a must for extended run times at anywhere near full power.

Added a couple of beamshots to post 4…

I wondered what all the strange light action was on the horizon. Your latest pictures explains everything. So how many people did you blind?