Get our LED Grow Light Engines for your DIY LED light build: https://chilledgrowlights.com/product-category/diy-led-grow-light-engines-drivers
First look at the LED grow light master controller and its white only mode.
The NFT channels I used can be found at: http://www.farmtek.com/farm/supplies/prod1;ft_hydroponic_supplies-ft_hydroponic_nft_channel_systems;pg111000.html
White 1/4in tubing: http://www.farmtek.com/farm/supplies/prod1;;pg110408_111046A.html
1/4 tube valves: http://www.farmtek.com/farm/supplies/prod1;;pg110408_111047.html
1/4 tube threaded adapter: http://www.farmtek.com/farm/supplies/ProductDisplay?catalogId=15052&catalogId2=10001&ftCatalogId=10001&searchMethod=wcSearch&searchType=ANY&searchBeginIndex=0&searchDefaultPerPage=10&ftSearchBeginIndex=0&ftSearchDefaultPerPage=10&mfPartNumber=109242
In case you are wondering, no I am not affiliated with Farmtek in any way, just a happy paying customer.