Light advice. Spiderfarmer G7000

[BarbwiredTN]

Help. 1st time growing. Have 8 photo plants (3 varieties), indoor grow room with central AC. I'm at 5th veg week. Plants look good as far as I know, 12-20 in tall, one runt refuses to grow (orange pot). Temp/RH normally 75-80/55-60%. Started with crappy lights & upgraded about week 2 of veg. Grabbed SFarmer G7000 light. Without thinking much I cranked it up to 90% where its been sitting for 3 weeks roughly 22in above the tallest plant & on an 18/6 on off time. I just saw a YouTube saying this is way too much light. Heres a pic from 5 days ago. Do I need to turn down? Am I ready to flip to flower? Should I flip the light to 75% for a couple more weeks before flip? Also I think I'm cutting off too many big fat fan leaves lol. All suggestion greatly appreciated!!

 

[Phyto]

Yeah, you could turn it down to 40-50%, you're just wasting photons (and money for electricity). What does the unit say about dimming, distance, and vegging?

 

[BarbwiredTN]

Yeah, you could turn it down to 40-50%, you're just wasting photons (and money for electricity). What does the unit say about dimming, distance, and vegging?

Booklet just says distance could be as low as 12 in of using a dimmable light (which this is). Mentions ideal ppfd 400-600. No clue what that is. Heres a screenshot of specs

 

[Phyto]

I looked it up, at 16 inches, in veg, you should be at 45-50%.

 

[BarbwiredTN]

I looked it up, at 16 inches, in veg, you should be at 45-50%.

You're my hero. So one last question. Do my plants look big enough to flip to flower . And 2 weeks into flower do I bump up to say 75%, last week 100%?

 

[Oldchucky]

Booklet just says distance could be as low as 12 in of using a dimmable light (which this is). Mentions ideal ppfd 400-600. No clue what that is. Heres a screenshot of specs

That’s a massive light! Sweet! No going too small here!

 

[Phyto]

You're my hero. So one last question. Do my plants look big enough to flip to flower . And 2 weeks into flower do I bump up to say 75%, last week 100%?

Here’s the way I figure out when to flip, once the plant starts to produce alternating nodes, it’s mature and can be flipped. You also want to figure in how much vertical space you have and plan on 75% and sometime.up to 100% stretch. So if you’ve got a plant (with container) that’s 3 feet tall, you need 3 feet for the stretch, PLUS how far the light has to be from the plant, and how far away from the roof the light needs to be (fire safety). I ramp my lights over a few weeks to 100% after flip, this grow I’m experimenting with dropping the lights at week 9 about 10% a week to simulate the lower level light of late fall. We’ll see if it affects the final product.

 

[BarbwiredTN]

Here’s the way I figure out when to flip, once the plant starts to produce alternating nodes, it’s mature and can be flipped. You also want to figure in how much vertical space you have and plan on 75% and sometime.up to 100% stretch. So if you’ve got a plant (with container) that’s 3 feet tall, you need 3 feet for the stretch, PLUS how far the light has to be from the plant, and how far away from the roof the light needs to be (fire safety). I ramp my lights over a few weeks to 100% after flip, this grow I’m experimenting with dropping the lights at week 9 about 10% a week to simulate the lower level light of late fall. We’ll see if it affects the final product.

Thank you so very much! Yes I just watched a youtube about bell curving the light back down from 100% at the 9 week mark. Sounds natural.

 

[ArtfulCodger]

When leaves are happy with the light level, they're flat, level, and vibrant green. Edge curl, taco-ing, canoe-ing, twisting, or any color other than green suggest you might want to turn the light down. I flip to flower when my plants cover 50% of my flowering space footprint.