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Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

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Old 03-11-09, 08:54 AM   #1
duke_of_hazard
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Unprecedented times?

I only got into commuting last year and am amazed at how affordable and powerful these LED flashlights are becoming. Is this a new phenomena or have LED flashlights been around for ages? It certainly has transformed my ability to commute at any time of the day and make it a serious lifestyle as opposed to a hobby..
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Old 03-11-09, 09:18 AM   #2
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LED lights have been around for a while, it's just the powerful ones really took their merry time after 'white' was introduced.
"white" as in blue LED, which were the hot stuff at the time, but with a coating of phosphors to make red and green out of blue, ending up with white... LED.

there's still a lot of potential left in LEDs, but the main problem is the heat they produce and the optimum operating temperature efficiency on prolonged run times.
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