chubbarificus
Newly Enlightened
- Joined
- Dec 11, 2009
- Messages
- 5
hi everyone i am new to cpd, but i have been reading some threads and this will be my first real post.
-first off a little about me:
i am very interested in the physics of high powered led flashlights and was wondering if all you pros out there can enlighten me.
-i have an obsession with flashlights
-i bought a bunch on DX and KD and now have an armory full of em.
-somewhere along the road, i got interested in building my own flashlight, but i have zero experience with all of these dealios with drivers and resistors and all that fun stuff in flashlights.
well down to my point:
i was wondering if anyone could assist me in doing so.
to start off, i have around 150-200 dollars to spend and i am interested in building either a triple part bike light (two leds on the sides for wide general lighting, and the middle part an led that will throw far, but still have decent light).
i was looking at this guy's manual in building my own flashlight
http://www.bikeled.org/
and came up with the decision of
|MC-E|CREE XP-E R5? OR R4|MC-3|
or
|P7|CREE XP-E R5? OR R4|P7|
www.bikeled.org talks about the 3021 buck driver and how it delivers constant 1 amp to the leds. my question is, the P7 has max efficiency at 2.8 amps, so i was wondering if there was a type of driver i could use.
i also heard the term "direct-drive" on dealextreme threads and was interested how that works with flashlights as well.
i apologize if i butchered any the LED/flashlight jargon, please forgive me as i am a newbie.
i certainly appreciate any input
-thanks:
chubba
-first off a little about me:
i am very interested in the physics of high powered led flashlights and was wondering if all you pros out there can enlighten me.
-i have an obsession with flashlights
-i bought a bunch on DX and KD and now have an armory full of em.
-somewhere along the road, i got interested in building my own flashlight, but i have zero experience with all of these dealios with drivers and resistors and all that fun stuff in flashlights.
well down to my point:
i was wondering if anyone could assist me in doing so.
to start off, i have around 150-200 dollars to spend and i am interested in building either a triple part bike light (two leds on the sides for wide general lighting, and the middle part an led that will throw far, but still have decent light).
i was looking at this guy's manual in building my own flashlight
http://www.bikeled.org/
and came up with the decision of
|MC-E|CREE XP-E R5? OR R4|MC-3|
or
|P7|CREE XP-E R5? OR R4|P7|
www.bikeled.org talks about the 3021 buck driver and how it delivers constant 1 amp to the leds. my question is, the P7 has max efficiency at 2.8 amps, so i was wondering if there was a type of driver i could use.
i also heard the term "direct-drive" on dealextreme threads and was interested how that works with flashlights as well.
i apologize if i butchered any the LED/flashlight jargon, please forgive me as i am a newbie.
i certainly appreciate any input
-thanks:
chubba
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