Led modes

I agree with numbers. aim for DLI and less about spectrum. You might notice to hit the DLI you want you need grow+bloom enabled. aka more watts and more light. PPFD maps helps calculate DLI easier, see if your light has any. Then type in google PPFD to DLI, best to match up the tent size and hang height with dim setting to the map or it will be off. If you can't do w/e is closest and monitor the plants to see if they are happy.

it'll make virtually no different. You want the right amount of DLI (daily light integral) that is 90% of the pie. there's no such thing as vege and bloom lighting. a cooler light will cause more branching and a warmer light will cause less branching and more vertical growth -- but these effects are not profound. it will not turn a bushy plant into a tall lanky plant. you probably won't even be able to notice a difference with your eyes. you should give enough light to reach roughly 35-40 dli. if that requires both modes on, the so be it. if growing photoperiods, do work backward from light needs over 12 hours. over 18 hours you need 66% of that power from same hanging distance of light from canopy. there are some measurable differences as far as resulting morphology, but it's so small you cannot tell with human eyes.. .it's only obvious with large sample sizes. I've been growing with 2900k to 3400k for several years and i still cannot see a difference between plants of the same strain under either. not even with clones. the effect is so tiny compared to the big picture that it shodl be ignored if it also means less DLI given. DLI correlates with rate of growth and yield.. not so much CCT.

So if your led light lets you select between veg. and flower then the manufacturer most likely has the light optimized for each setting. The veg setting will emit more blues which will promote more more growth bit yet more compact with tighter, closer together nodes if there is too much red spectrum you will have a plant that will be lanky with nodes that will be further spaced apart. For all you need to know about led lighting watch Dr. Bruce from the University of Utah online. Hope this helps.

Use veg mode during vegetative growth for leafy development and bloom mode during flowering for better blooms.