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Supplemental lighting
- Thread starter DoubleA
- Start date
Bluey
Well-known member
If using a modern full spectrum grow light, no, you do not need them. Waste of money.
So what light are you using in what size space and what voltage is your power supply?
Using standard flood lights under the canopy in flower will give you much better results at half the cost.
So what light are you using in what size space and what voltage is your power supply?
Using standard flood lights under the canopy in flower will give you much better results at half the cost.
crucialbunny
Well-known member
I've used supplemental multi-spectrum light bars for under canopy lighting and it worked very well. I'm typically an outdoor grower but on occasion do some indoor auto grows.
Bluey
Well-known member
Under canopy lighting at up to 50% of the above canopy lighting is showing substantial increases in yield, up to 50%, in controlled trials. Cheap weather resistant flood lighting works fine in this space.
I've run supplemental lighting in my first few grows both 660nm, 730nm & 405nm above the canopy and found no increase in yields over running full spectrum LEDs so I don't bother with extra UV or IR lighting any more.
I've run supplemental lighting in my first few grows both 660nm, 730nm & 405nm above the canopy and found no increase in yields over running full spectrum LEDs so I don't bother with extra UV or IR lighting any more.
MiguelEnfermo
Member
Bluey, do you use just regular incandescent flood lights for under the canopy? Like a regular GE 75W incandescent bulb pointing up underneath the canopy? I can see that getting pretty warm in a tent.
MiguelEnfermo
Member
Understood. I think I might try that this go around. THANK YOU!
crucialbunny
Well-known member
Here's the under canopy lights I use for autos.
They're cheap and adjustable. Seems to make
a significant increase in my yields.
Smallgrow
Well-known member
How are you guys approaching light distance for under canopy lighting Bluey and crucialbunny?
It guess they are not strong enough lights at the proposed power to need significant distance from plants, thoughts?
It guess they are not strong enough lights at the proposed power to need significant distance from plants, thoughts?
Bluey
Well-known member
They way I grow requires about 300 to 400W per plant above canopy depending on veg time and size so underneath I only require between 75 to 100W per plant. I've got flood lights of 80W and 20W and I'll just be setting the distance so it lights up that part of the canopy I need lit up. Just divide your light up accordingly to get as much coverage as you can. It's not strong so shouldn't be an issue
SWFL
Guest
I would say given what you already have you do not need any additional lighting, keep in mind there is such a thing as leaf damage from too much light.
Smallgrow
Well-known member
Well, I couldn’t contain myself any longer so I pulled the trigger on the AC Infinity Ionbeam 16 supplemental bars, even though it might make my current problems worse. I do believe they can increase yield.
They are probably not the cheapest way to go, and by Bluey’s math (which I think is correct), I could use twice as much wattage. They are well made and except for the weak magnets I’m happy with them. I got them installed a couple weeks ago, well into flower but it’s seems like the buds down low are responding to them
They are probably not the cheapest way to go, and by Bluey’s math (which I think is correct), I could use twice as much wattage. They are well made and except for the weak magnets I’m happy with them. I got them installed a couple weeks ago, well into flower but it’s seems like the buds down low are responding to them
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Smallgrow
Well-known member
I can already see a differences in the quality of the lower bud sites after a month. Even with that little extra lighting
These had about 2 weeks to go when the pics were taken. There still loose but good Trics, and denser than I’d usually get at the very bottom of the plant
These had about 2 weeks to go when the pics were taken. There still loose but good Trics, and denser than I’d usually get at the very bottom of the plant
Attachments
Artstone
New member
I had the same question if you are talking about blue and ir lights by spider farmer.
I can’t really summarize but I didn’t find that it would be worth it. Google supplemental ir lighting some college professor has a video, I didn’t understand it too much but what I got was - too much for too little payback
I can’t really summarize but I didn’t find that it would be worth it. Google supplemental ir lighting some college professor has a video, I didn’t understand it too much but what I got was - too much for too little payback
Smallgrow
Well-known member
I’m not sure what Bluey has going on , but I’m just using regular full spectrum LED under canopy supplemental lighting. It definitely seems to be making a difference down below. I’ll post some pics when I harvest in the next few days.
UV and IR may have some benefit but not something I’m using, or planning to.
UV and IR may have some benefit but not something I’m using, or planning to.
DoubleA
New member
I purchased and am using all 3 spider farmer supplemental lights…IR is 15 mins before lights on (sunrise) and 15 mins after lights out (sundown), UV is 5 mins per hour and deep red about 15 mins per hour .I spent the money on a digital PAR reader as well and have always been under the threshold limits based on there grow state. I don’t know if it helps or not but they look pretty good so far.
