you might be getting confused with the numbers, like when your calculating the input on a taskled driver. more series cells equals less amps into the driver. it’s less amps in only cause the voltage is higher but still the same watts. Sorry if i made it worse.
Thats exactly what I was concentrating on was the current in. I didn’t even think of the wattage input. I think the closer I am to voltage input vs voltage forward the driver will be less stressed. Also minimal heat up.
If it is a driver that is a constant led current, more voltage will == less current.
However if the driver is pulling 6 amps at ~23 volts with 6 cells in series, each cell is providing 6 amps.
If each cell was only driving 1 amp, that would also mean 1 Amp at ~23 volts at the driver.
Think of each cells as a water pipe. 6 lined up providing 1 gallon per minute is still only 1 gallon per minute at the end.
6 in parallel doing the same will be dumping 6 gallons per minute at the end.
I got the LEDs today. Thanks to Matt (vesture_of_blood).
I got them lapped and bonded to the base. They are all wired up in series. I tried to keep the wires as short as possible. I will power them up maybe later tonight or tomorrow. I will start at a conservative 2.8A. :bigsmile:
Im completely shocked it did that well. The head gets hot real quick. After about 10 seconds I start to get scared. Lol. think I just built a 250.00 dollar 10 second flashlight. What a waste! :~
I'm thinking for a conservative 700 lumens per emitter, you would have 8,400 lumens. More realistic may be 800 lumens, so 9,600 lumens total, but you so need to run it for 30 secs to get a proper reading .
Here are a few pics of it finished up. I did some calculations and it kinda conserns me. I calculated driver efficiency at only 76 percent. Here is how I did it, please correct me if I made a mistake.
The actual battery voltage was 24.18v. My tailcap current was 6.1A. My emitter current is 2.8xA.
I did 24.1x6.1 and got 147.01 that times .76 gave me 111.7 then I divide by vf which is 39.6v. It gave my emitter current that it is set at 2.8x.
Im probably doing it the hard way. Let me know if I did anything wrong.