xpitxbullx
Flashlight Enthusiast
Can the downboy be set to output 1400mA? I want to use this in an aleph2 with one of those 140 lumen red Lux-III.
Jeff
Jeff
-
You must be a Supporting Member to participate in the Candle Power Forums Marketplace.
You can become a Supporting Member.
Downboy 1400mA
- Thread starter xpitxbullx
- Start date
Help Support Candle Power Flashlight Forum
DaGunn
Newly Enlightened
/ubbthreads/images/graemlins/popcorn.gif
I've done 1.5A and didn't have any immediate problems, although I can't comment on the long term effects. The emitter was a UWOK and it was insanely, ungodly bright. This particular emitter was a very good performer and this light engine in a custom head with a McR27 reflector had a more intense hotspot than a TWOJ running at 1A in an Aleph III head, with a 38mm reflector.
If you want to go for 1.4A, you can try two .1 ohm resistors in parallel on one set of pads and a .12 ohm resistor on the other set of pads. This should get you close to your target bias.
If you want to go for 1.4A, you can try two .1 ohm resistors in parallel on one set of pads and a .12 ohm resistor on the other set of pads. This should get you close to your target bias.
wquiles
Flashaholic
Chop,
I do have a DB1000 that I want to mod to 1.4A - which pads are you refering to? Any photos/diagrams to make sure I change the right parts?
Thanks,
Will
I do have a DB1000 that I want to mod to 1.4A - which pads are you refering to? Any photos/diagrams to make sure I change the right parts?
Thanks,
Will
wquiles,
If you look at the downboy (you might want to use a magnifying glass), you'll see two identical, tiny (0603 size) resistors sitting parallel to each other. If it is indeed a DB1000, each should be labeled with a ".10." All you need to do is to solder an additional .12 ohm resistor on top of one of these resistors (running it in parallel to the existing one). This should get you right about where you want to be. If you want to go a bit on the conservative side, you could use a .15 ohm resistor.
If you look at the downboy (you might want to use a magnifying glass), you'll see two identical, tiny (0603 size) resistors sitting parallel to each other. If it is indeed a DB1000, each should be labeled with a ".10." All you need to do is to solder an additional .12 ohm resistor on top of one of these resistors (running it in parallel to the existing one). This should get you right about where you want to be. If you want to go a bit on the conservative side, you could use a .15 ohm resistor.
wquiles,
If you look at the downboy (you might want to use a magnifying glass), you'll see two identical, tiny (0603 size) resistors sitting parallel to each other. If it is indeed a DB1000, each should be labeled with a ".10." All you need to do is to solder an additional .12 ohm resistor on top of one of these resistors (running it in parallel to the existing one). This should get you right about where you want to be. If you want to go a bit on the conservative side, you could use a .15 ohm resistor.
If you look at the downboy (you might want to use a magnifying glass), you'll see two identical, tiny (0603 size) resistors sitting parallel to each other. If it is indeed a DB1000, each should be labeled with a ".10." All you need to do is to solder an additional .12 ohm resistor on top of one of these resistors (running it in parallel to the existing one). This should get you right about where you want to be. If you want to go a bit on the conservative side, you could use a .15 ohm resistor.
wquiles
Flashaholic
Tony,
Yes, I found the two .10 resistors as you predicted. Cool - now I know what to change. Thanks much /ubbthreads/images/graemlins/grin.gif
Will
Yes, I found the two .10 resistors as you predicted. Cool - now I know what to change. Thanks much /ubbthreads/images/graemlins/grin.gif
Will
