Just won a 238 led light. Who wants to touch me? (added photo)

[LumenHound]

Re: Just won a 238 led light. Who wants to touch me?

What the hell that thing is down right hilarious! I thought the 128 LED lights were bad but this is to a whole nother level. I always wished that the pro modders on here would make a multi LED light (50+) all Nichia CS U bin and run them at 20ma and make the light fully regulated. It would have incredible output and great runtime. Any volunteers?

I bought a 3 X AAA 45 led light as a host when they first hit ebay a while back and swapped out the original 15K leds for LOV 35K leds. I replaced the plastic lens with a UCL and powered the array from a Down Boy adjusted to output a constant 1.6 amps. A pair of RCR123 cells fit (barely) in the battery barrel. Six months later the Light Of Victory 35K leds were replaced by Jeled 50K leds.

Not the most practical flashlight I own but it was a fun and easy low $$ build and it blew away a Lux V. I got quite a few comments on it the first time I took it camping.
Now it just collects dust.

 

[kyazh]

Re: Just won a 238 led light. Who wants to touch me?

Good luck with that thing, would be a good device to blind the living crap out of someone lol. I got one of those with 40 LED's. Half of the LED's crapped out after a month. I'm going to do some mods and use the case with some high power LED's soon.

 

[Pellidon]

:bump: Photos added to first post. And comments.

 

[Silviron]

Re: Just won a 238 led light. Who wants to touch me?

Nichia CS LEDs cost about $3 each! An array of 50 at 20mA might give you around 300 lumens. Driving 3 Seoul LEDs at one watt each will give you the same amount of lumens, from the same amount of power, for significantly less money.

Nichia CSs cost 85 cents each in quantities of 100 (they are actually up five bucks per hundred from the last time I bought them). Back when I had the flashlight mod supply shop, I re-sold them for $1.15 individually or a dollar each for ten.

In quantities of a thousand (which wouldn't build four of these lights), they are 53 cents each.
http://store.nichia.com/index.asp?PageAction=VIEWPROD&ProdID=138

In the quantities that a big time manufacturer would order, they are probably 40 cents each.
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That said, I can't see any reason to build or buy a flashlight or headlamp for actual, normal use with more than 7 or so regular 5mm LEDs .
Any more than that, Luxeons, Crees etc. make more sense electronically, financially and practically.

Just for fun, I HAVE built a few lights with more than a hundred Nichia CSs (and/or LCK26Ks), , and they don't throw half as far as my old first run 1 watt ARC LS, and only apparently provide about 2-3 times as many lumens fifteen feet away.

 

[VidPro]

that is completly INSANE , i love it
mod it with Quad die leds , run at 20ma they will live longer, because they can handle a total of 80ma (then die)
with 238, quad die leds running 100ma , that would be about 10 min runtime on alkalines 24amps

 

[Pellidon]

With fresh batteries it draws 1.9 amps. That calculates out to 8 ma per led. It is bright. almost as much as my U2 clone when pointed at the ceiling and measuring the reflected light.

 

[Fallingwater]

With fresh batteries it draws 1.9 amps. That calculates out to 8 ma per led. It is bright. almost as much as my U2 clone when pointed at the ceiling and measuring the reflected light.

8 ma? Hmm, couldn't one could change the resistors and get it to draw the canonical 25 or so ma per LED? That would kill non-rechargeable batteries quick smart, but it'd also make it emit more light with NiMHs...

 

[Pellidon]

I am not certain my harbor freight meter is that accurate on the amp scale. My best bet would be to open the head back up and measure the voltage across the resistor. They look brighter than the 8 ma I have calculated.

 

[lctorana]

Hi, I'm new here.

I just love shower-head torches.

They have their uses - in particular, the smooth spread of light, without any trace of a central bright spot, is perfect when you are working on your car in the dark, as you do, and somebody else is holding the light. When they get tired, distracted or in the way, the exact spot where the torch is pointing doesn't matter so much.

I have a 128 on order.

 

[carbine15]

next step:

one thousand
LED flashlight
(one each)
​

 

[Learjet]

Bring it on! Run it on 12 D's.

 

[Illum]

4 banks of parallel 250LEDs in series, then run it on 8Ds...or a SLA if you want to haul it

at 8ma each each bank of parallels is still going to draw 2 amps!

 

[petersmith6]

just what im after...and LED malet.....how about 238 cree's? upgrade...mmm and a welding mask..:naughty:

 

[Illum]

how about 238 cree's?

way too hot....and very doubtfully you can buy it for less than $1K

 

[kanarie]

dubbelpost

 

[OhMyGosh]

I have this 100 LED light. I think it is great. Very bright with wide beam. It has replaced my Mag 2*d as my 'around the house' light. It doesn't seem to get hot but I don't use it more than a few minutes at a time.

 

[Monocrom]

Re: Just won a 238 led light. Who wants to touch me?

Wow, It looks like a Shower head stuffed with Leds

That thing's gonna give me nightmares! oo:

It looks like a small army of angry LEDs!

 

[stephenmadpotato]

dude i want to touch you.

 

[carbonmetrictree]

C'mon! Who wants to CREE it !?!?!:twothumbs

 

[glockboy]

The flashlight head is a good host for the 10 Crees.:thumbsup: