olrac
Flashlight Enthusiast
I am starting a mod using 4 AA/NiMh in series with 3 XP-G R5's in series. Question is will this work as a DD set up if not any suggestions for a driver with this configuration?
Thanks
Thanks
XP-G DD or driver?
- Thread starter olrac
- Start date
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lolzertank
Enlightened
3 AA would be much safer since the Vf of the XP-G is so low. Even then you might want to put a resistor.
olrac
Flashlight Enthusiast
The XP-G's are Vf in the low 3's so three in series would be around 9 to 9.5.
4 AA's in series are reading around 7.7V.
4 AA's in series are reading around 7.7V.
baterija
Flashlight Enthusiast
- Joined
- Feb 7, 2008
- Messages
- 1,053
In series? That would give you about 9V forward voltage required for 350 mA. In that case you need more voltage or a boost driver. If you meant parallel, like I assumed on first reading, Lolzer is on target.
olrac
Flashlight Enthusiast
baterija
Flashlight Enthusiast
- Joined
- Feb 7, 2008
- Messages
- 1,053
Here's Torchboy's driver database link. I selected only boost and sorted by number of LED's they can handle (got an error sorting on max so your candidates are at the bottom.)
Picking the drive level you want, modes, and size/space available probably narrow your choices down quite a bit.
Picking the drive level you want, modes, and size/space available probably narrow your choices down quite a bit.
olrac
Flashlight Enthusiast
Thanks baterija, that's exactly what I needed. :twothumbs :thanks:
