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Finally, somebody made a really handy Flashlight !


jimdt7

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I will go camping with it ! Hope it fits inside my tent :crackup:
 

Cyparagon

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"finally".... the video was uploaded more than three years ago. :) Those 5mm LEDs are not very efficient... 2-3 lumens apiece I believe. A single modern high power LED could beat it in terms of light output.
 

Benm

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Hehe.. somehow this thing was not built for function...

Other wise you might as well shove a car headlight into that tube, add a battery and a switch and be done wit it. Interestingly, performance would be better than that of those 500 5mm leds.
 

GBD

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Yeah Benm, mostly for comical value :D

Thats an old video, but while on the subject, those LEDs are ancient indeed, I really don't see why they are still used for lighting applications today; other then bieng cheap as hell, can get 1000 of them for a few dollars.. not that it matters, brand name LED bulbs such as philips are still overpriced, where those use either those 5mm ones, or the SMD equivilant (albiet a bit more efficeint, it is no better.), they are really only good for indicator lights on equipment or appliances IMO.

A single SST-90 will blow away this 500 led light.
 
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Benm

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I think they've been phased out for most lighting applications. U used to see a lot of 'lightbulbs' that consisted of a number of 5mm leds (50-100 or so), but now most led bulbs have a sinlge emitter, or at most a few.

Perhaps the only benefit of the 5mm ones is that the power density is so low you can often use them without any heatsinking. Heatsinking is also easier when putting a lot of smaller smd leds on a plate, but most of those are pretty inefficient (50-70 lm/W) too.

I suppose efficiency doesnt matter that much with mains powered lamps, and they are still a lot better than incandescents, yet hardly require replacement.
 

BShanahan14rulz

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the "Lights of America" brand is the brand that uses a ton of 5mm strawhat LEDs. Way to give LEDs a bad name, LoA. (Oh, and thanks for giving America a bad name too, although we had that to begin with. Also, I think LoA is made in China)
 

Cyparagon

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I speak for the rest of the lighting enthusiasts when I say: Lights of America is utter garbage. Most lamps die in a few weeks, and those that don't have severe lumen depreciation.

Oh, and they're dim to begin with :mad:
 




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