I am looking to build a pair of LED Canister lights for my father and myself. I have been scouring the Internet for all the information I can find on building one. The only problem is most of the tutorials I have found are super old (and specific for halogen lights) and things change quick. The best information I have found has been here on CPF especially concerning LED's, Drivers, etc. The mechanics and machining are the easy part for me but I have quite a few questions regarding the LED, driver, wiring, battery, etc.
I'm planning on using PVC for the canister and a D cell Mag for the light head. I'll be using it for recreational night diving and not cave/wreck diving or photos/video. I'll be using it mostly in the Pacific Northwest in the Puget Sound/Hood Canal. I want something that is really bright but still want a good balance between that and battery life.
Here are the parts that I was thinking about using for the electronics:
LED: SST-90 from DX (Part# 47961).
Driver: Considering either the H6Flex, DIWdiver's IS1006, or the Der Wichtel 9A Buck Converter.
Reflector: I saw that someone else had used the DX 52.8*41.5 (Part# 13803) on an SST-90 canister light. Another user also recommended the DX 53*30 (Part# 18841) for a "tighter beam" with an SST-90. The other one I also saw recommended somewhere was one from zbattery (Part# 108-846) since it's deep. Which one of these would give me the best beam with an SST-90?
Battery: This is probably the area where I could use the most advice. I found an 11.1V Sanyo 18650 5200MAH 3S2P that I was hoping would be sufficient (Ebay Item# 220792321517).
Battery Charger: What charger would everyone recommend?
The big question I have is if this configuration would work well together? What could I expect as far as battery life?
Would anyone recommend a different route altogether as far as LED, Driver, Battery? I figured I would solicit advice before I take this project on since many of you have built these and have loads of experience/knowledge to share.
I know that's a ton of questions so any recommendations, suggestions, and feedback is very much appreciated!