Best Answer - Posted by
gardro
"Hi mate
Far red is 730nm not 660nm which is deep red.
4 boards of white light will deliver a whole load more than a few red leds on 3 boards so thats what id get.
The red leds are for marketing just so they can say the umol per J is a tiny bit more. You will be a tiny bit less efficient with the older plain white, but really not noticeable.
In fact, the older lights came with HLG ( as in Meanwell not the lighting co) drivers which were more efficient than the XLG drivers that come with later lights so the difference isnt worth it."
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