Hi folks,
I'm pretty new to the world of electronics so thought I would post in the beginner section, see if I can get some advice on my current project.
...
My brief is to run off 2S lipo pack, be able to run 8 LEDs in series at 2A which comes in around 60W.
...
Thanks for thoughts and insight.
...
Re light power, strictly off road use (think forest and 6 foot drops in a Scottish winter), hoping some decent light output (~100 lumen/watt) will allow me to get some decent video.
...
If I may first make a non-electronic suggestion...
You may be better off with two separate lights. Lights and electronics do fail, and home made electronics made by someone (as you put it) "pretty new to the world of electronics" likely has a higher probability of failure. (Please don't feel I am putting you down, not my intend... I am a novice myself.)
If you are off-road, and as you put it, forest with 6 foot drops in Scottish winter, a failure will put you in danger. With two lights, should one fail, you still have some light. You wont suddenly be in total darkness with one of those 6 foot drops just ahead of you.
Back to electronics, and from another novice.
On that same note, parallel LED's is probably better. If you are running 2 lights each has 4 in parallel. Instead of high current driver, now you can use simple single LED driver. You can eliminate the booster and that may increase efficiency as well.
So, each light has 4x (LED+driver) running in parallel; and two separate such lights. For simple LED failure, you likely will have 7/8 of your lights to get out of danger. If it is a power-supply failure, you have 1/2 your lights to get out of danger.