Lighting Maximizing my 480w Kingbrite QB help please :)

[Fubarred]

Good morning all,

I recently had to move from a 4x4 to a 3x3 and have a 480w Kingbrite QB. I have seen lots of pics/posts that show QBs at the tops of tents, far far from plants. I would love to know how people are figuring out what to set their QBs at to achieve this. I am looking to grow a few different strains in this tent and would prefer to not have to move the light constantly (like i have been for the last 1.5 years).

I see that they recommend 30-40w per sq ft. I was hoping it's something as simple as multiplying that out by sq ft of the tent but something tells me that would be entirely too easy. (3' x 3' = 9sq ft. then set the QB to 270w at the wall). I do not have a par meter, though I do have a lux meter. I also have no issues reading massive articles or any other information someone has on this.

I feel like most of our grow tents have all of the environment factors dialed in minus the lights. Any help would be appreciated.

Thanks so much!

 

[Death The Cultivator]

Good morning all,

I recently had to move from a 4x4 to a 3x3 and have a 480w Kingbrite QB. I have seen lots of pics/posts that show QBs at the tops of tents, far far from plants. I would love to know how people are figuring out what to set their QBs at to achieve this. I am looking to grow a few different strains in this tent and would prefer to not have to move the light constantly (like i have been for the last 1.5 years).

I see that they recommend 30-40w per sq ft. I was hoping it's something as simple as multiplying that out by sq ft of the tent but something tells me that would be entirely too easy. (3' x 3' = 9sq ft. then set the QB to 270w at the wall). I do not have a par meter, though I do have a lux meter. I also have no issues reading massive articles or any other information someone has on this.

I feel like most of our grow tents have all of the environment factors dialed in minus the lights. Any help would be appreciated.

Thanks so much!

You can use alux meter but it won't be accurate. What you could do is rent a part meter for a week then do your measurements and not have to ever guess on distance.

Rental: Apogee MQ-510 Par Meter: Full-Spectrum Underwater Quantum Meter + Wand

Rent the newest Apogee MQ-510 Par meter specially designed to measure the blue light emited from LEDs. Rental price starts at $15 and shipped directly to your door. Don't settle for cheap inaccurate equipment anymore. Find out exactly what par your coral needs.

www.podyourreef.com

Otherwise you can try converting lux to ppfd but without a spectrometer to ascertain the SPD it will not be as accurate. I've rented one several times now when building lights so that I don't have to guess or use metrics made for humans.

 

[Fubarred]

I didn't realize they were so cheap to rent. Hell, I didn't even know you could rent them! Thanks so much!