Wireing diagram for Tri Cree LED's question

[erlomd]

Can you guys check my wiring diagram for the LED's?

I did two versions...running a 3.7Li 18650 battery to an NBv3
They are Tri-Cree XP-E2 B/B/W

http://i259.photobucket.com/albums/hh287/erlomd1/Screen%20Shot%202016-04-02%20at%2011.08.55%20PM.png

http://i259.photobucket.com/albums/hh287/erlomd1/Screen%20Shot%202016-04-02%20at%2010.41.26%20PM.png

Thanks!

[Silver Serpent]

Both diagrams are acceptable.

[erlomd]

Both diagrams are acceptable.

Thank you sir!

[Cheradenine]

The value of your blue die resistors are a little high. Assuming a current of 1,000mA and a forward voltage of 3.47V then the resistance is 0.23Ω (with the power dissipated being 0.23W too) Next readily available size of resistor is then 0.47Ω @ 0.5W - your saber will be brighter too!

When you have the LEDs connected in parallel, the resistance is even more titchy - just 0.12Ω (rounding up to 0.47Ω again probably unless you can find anything suitable). In saying that I'm on the side of the fence that says you shouldn't do this (since in general it's a bad habit to get into) and should have a resistor on each LED given their disparity in cost. You may have other ideas however.

[FenixFire]

Check around some local electronics and ham radio shops. I found one with 16' long x 5' tall binned shelves with resistors of all types. I remember seeing bins for .18 Ohm ceramics and picked up a .22 Ohm .5w ceramic from there. Most will have salvage shelves for all kinds of greebles as well.