Great waterproof box for diy 4*18650 pack - Groupbuy?

It's for my 400nm uv “worklight” - 7 of these leds in parallel:

DC Forward Voltage: 3.4V - 3.8V
DC Forward Current: 700mA (=> 7 led's * 700 = 4900 mAh)

I got a 1 mode Nanjg 105C driver from intl-outdoor and some extra AMC7135 from FT to raise the driver-output to 4900mA (13x380=4940 - have to learn how to stack AMC7135)

All powered by 4*3,7v 3400mA Panasonic NCR18650B in parallel.

I really appreciate the advise from all of you, and have ditched the idea of the crappy FT cell holders -I already hate them!!! :-p

I'm still a n00b, and the best way for me to learn, is by doing. So the build is a great learning experience. It's the only way for me to get the "theory" to stick.

FlashPilot and Werner, would You mind posting/copying your comments from here (#9 #15 and #17) and into my build thread, or is it ok if I quote you over there? -I would like to have your comments in that thread also - to have the info/advice in the same thread as the build.