Hi there i need some help. I am trying to build a canister divelight with 3 soeulp7 high power leds. The head is going to be machined out of aluminium and the battriepack is going to be machined out of delrin. The type of battries i am going to use is nihm. Can anyone tell me which is the best driver for the most output of the p7, the best type of reflectors for them, i am trying to buy 18-26 degrees reflectors, and what is the correct voltage for these driver. I will try to do 4.5 or 9 amp battrie pack i need about 2 hours burntime. any help for the build
Canister dive light
- Thread starter kevgalea
- Start date
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DM51
Flashaholic
Welcome to CPF, kevgalea 
The H&M section should have been an appropriate section for what you were asking, but as you've had no responses I'm going to move it to its obvious home in our Dive Lighting section.
The H&M section should have been an appropriate section for what you were asking, but as you've had no responses I'm going to move it to its obvious home in our Dive Lighting section.
Packhorse
Flashlight Enthusiast
If thats the set up you want ( which in my opinion is going to result in a very floody beam since the P7s have a very large die and you be forced to use small reflectors) then I would recommend wiring the LEDs in series giving you a required voltage of about 11.1 v ( 3 x 3,7).
10 NiMh cells in series will give you a nominal voltage of 12v which is pretty close.
I'd then use a single 2.8amp AMC 7135 based driver.
For 2 hour run time you will need about a 6amp pack.
10 NiMh cells in series will give you a nominal voltage of 12v which is pretty close.
I'd then use a single 2.8amp AMC 7135 based driver.
For 2 hour run time you will need about a 6amp pack.
I agree I built a 3 P7 head a while back and it was pretty floody. I think I used something like 20mm reflectors on it.
