It's seems that led light is very intense and has a much higher penetration than the cfl has . Today I've noticed some Browning roots the only reason I can see this happening is from a light leak into my tub . Anyway after small bit of investigation I found that the lid I've made for my tub lets no amount of light leak through it under my cfl but once you point the skip light at it . The brighter light from the led penetrates the lid and there I have my light leak . Straight into my nute tank . To stop this from happening I've taped up the lid and anything else with mirror tape . I've changed the nutes and washed my roots . So hopefully I've not caused them any harm and all will be ok .