65k

My current light hood runs 10 55w twin tub t5's with 4 65k, 4 35k and 2 27k While in flower should I switch any of the 35k or 65k out for more 27k's Would there be a noticeable difference in yield? Thanks all :circle-of-love:

First time grower here of auto flowers my seeds just touched down today so i'm Geeked and ready to get started. Heres What im working with: Box Size: 1ft 11''x 2ft 4''x 11" Soil: Fox Farm potting soil plain nothing added to it.. or should i add something to it..? Seeds: Northern Lights...