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Old 11-01-08, 01:49 AM   #1
Resist
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4100 Lumens!

http://www.engadget.com/2008/01/28/t...an-incinerate/

What about this flashlight? It's a freaking beast!
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Old 11-01-08, 02:35 AM   #2
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12xAA and 15min run time on a 100W halogen... sheesh.
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Old 11-01-08, 10:00 AM   #3
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Would five P7s from dealextreme have the same effect?
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Old 11-01-08, 10:43 AM   #4
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I bet there was some acellerant used on the paper to get it to ignite so quickly.
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Old 11-01-08, 11:51 AM   #5
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Would five P7s from dealextreme have the same effect?
Don't think, you'd need more like 8 of them to match the lumens (they're powerful but more like 600 lumens, not the 900 they claim) and plus they have a floodier beam that is difficult to focus (let alone 8 of them), the focus is what provides that ignition.
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Old 11-01-08, 12:28 PM   #6
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Don't think, you'd need more like 8 of them to match the lumens (they're powerful but more like 600 lumens, not the 900 they claim) and plus they have a floodier beam that is difficult to focus (let alone 8 of them), the focus is what provides that ignition.
Not only that, but an LED emitter puts off much less heat. The fact that LED puts out mostly light is why they are more efficient.
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Old 11-01-08, 05:25 PM   #7
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Don't think, you'd need more like 8 of them to match the lumens (they're powerful but more like 600 lumens, not the 900 they claim) and plus they have a floodier beam that is difficult to focus (let alone 8 of them), the focus is what provides that ignition.
It's not the focus that caused the ignition; if you watch the film closely it appears that he is touching, or at least coming extremily close to the debris. If you have ever had a bright halogen light like the Mag 8 cell or the rechargeable Mag, these things could burn your finger if you touched the lens after it had been on for just a couple of minutes. Even a plain household light bulb can burn your finger and it's not focused at all, and as the watts of the bulb increases the hotter it is. There where reports of household halogen lamps that caught drapes on fire because they were placed to close and weren't adequately protected. Now take a flashlight that is perhaps 10 times brighter then the Mag light and you could easily catch light weight paper on fire fast, with or without accelerant to speed up the process.
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Old 11-01-08, 05:42 PM   #8
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Not only that, but an LED emitter puts off much less heat. The fact that LED puts out mostly light is why they are more efficient.
Some smds and 4 prong leds put out like 5 times as much heat as any gas bulb.
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Old 11-01-08, 05:53 PM   #9
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I can't wait until more powerful LED lights come along. The brightest commercially available ones seem to be coming from DealExtreme now. It shouldn't be long before genuine 1000-lumen flashlights are here, and at the $50 range to boot. When that day comes, I'll be placing a new order.
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Old 11-03-08, 03:15 AM   #10
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You can pickup a 35 watt 3200 lumen HID spotlight at SamsClub Auctions for about $30 like this one. It has a 70 minute run time. It can also throw a beam 5-10 times farther then that halogen bulb.
http://auctions.samsclub.com/scripts...LotNo=79622153

I own 6 of them. You can even do Ballast mods on them so they toss out 5,000-7,000 lumens.

Or if you want to get really crazy. Buy a 1500 watt 180,000 lumen Metal Halide bulb and ballast. Run it off a Lipo4 battery and a 1500 watt+ DC to AC inverter and you'll have a nice 180,000 lumen 40-50 pound portable spotlight. http://news.thomasnet.com/fullstory/472579
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Old 11-03-08, 08:26 AM   #11
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You can pickup a 35 watt 3200 lumen HID spotlight at SamsClub Auctions for about $30 like this one. It has a 70 minute run time. It can also throw a beam 5-10 times farther then that halogen bulb.
http://auctions.samsclub.com/scripts...LotNo=79622153

I own 6 of them. You can even do Ballast mods on them so they toss out 5,000-7,000 lumens.

Or if you want to get really crazy. Buy a 1500 watt 180,000 lumen Metal Halide bulb and ballast. Run it off a Lipo4 battery and a 1500 watt+ DC to AC inverter and you'll have a nice 180,000 lumen 40-50 pound portable spotlight. http://news.thomasnet.com/fullstory/472579
Before I found the DX flashlights, I was semi-seriously considering investing in a spotlight. The biggest drawback to them is weight and size, which would make balancing one on a bicycle somewhat difficult. But some of the smaller spotlights could definitely be used without too much trouble, and with very impressive results.
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