It's the long run, (from supply to the lamp) that I would use 16 g. for.
Actually, I found some 2 conductor 14 ga with a nice flexible jacket called "low voltage wire" which I think is intended for decorative lighting. Not sure what my eventual driver situation will be but for running 6 LEDs off my bench supply I think I'll use that. It's such a short run, I can be extravagant for 6 feet!

I may run a separate 16 g. to each pair of LEDs, that'll be easy to work out once I've got parts in hand.
DreadedHermie Reviewed by DreadedHermie on . Calling out to Weezard for LED advice My friend, I've read your stuff here and at Steve F.'s site. I want to build a dedicated flowering lamp using Ledengin 15 watters. (4 reds, 1 blue, and possibly 1 warm white; LM 317's so I can tweak the ratios.) Essentially, a copy of your 4+1 cake pan lamp but built on a 4 x 18" finned heatsink so I can see what's going on under it.) If I were to post my picks for power supply, resistor ratings / values, etc., would you critique and perhaps offer some guidance? I have already purchased Rating: 5