Off the shelf retail store screw-in LED and CFL bulb comparisons

[BoredToDeath]

Do you guys use sunglasses or any other form of eyeprotection when gardening?

 

[SandyFantasyman]

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[3snowboards]

I never weigh

How many watts do you run?

I have a little over 100watts
I've never added them up

I dont weigh because I do a staggered grow with my lights running 24:0
I have a couple plants finishing now
They spend dark in a ventilated unlite.unheated closet

With these 2 that are 3weeks away from finish

Then these were just uppotted and are going to flip

Plus I put late flowers out in in the high altitude sun
on the reg
And I have a few seedlings
just started

 

[SandyFantasyman]

.https://www.icmag.com/ic/picture.php?albumid=80099&pictureid=1946036

 

[Big Perm]

 

[psyphish]

https://www.dailymail.co.uk/health/...amage-eyes-French-health-authority-warns.html

Maybe wear those sunglasses.

 

[Andyo]

https://www.dailymail.co.uk/health/...amage-eyes-French-health-authority-warns.html

Maybe wear those sunglasses.

The only thing the Dailymail ever been good for was wrapping fish n chips in the 60,s and whiping my arse with.

I have noticed sils do get my pupil to go pin point but as soon as im away from it it goes back to normal just like the equatorial sun i walk in daily.
I spent years in grow rooms full of 1000w sylvania metal arcs no uv shield, get a free tan
I got serious arc eye from welding / tacking with out a shield 45 yrs ago
That healed after a night of pain = 20/20 vision after 3 days.

Daily mail knows fuck all .A

 

[Amynamous]

Do you guys use sunglasses or any other form of eyeprotection when gardening?

Yes, i do. Found some nice ones for LEDs on Amazon a couple of years ago.

 

[psyphish]

The only thing the Dailymail ever been good for was wrapping fish n chips in the 60,s and whiping my arse with.

I have noticed sils do get my pupil to go pin point but as soon as im away from it it goes back to normal just like the equatorial sun i walk in daily.
I spent years in grow rooms full of 1000w sylvania metal arcs no uv shield, get a free tan
I got serious arc eye from welding / tacking with out a shield 45 yrs ago
That healed after a night of pain = 20/20 vision after 3 days.

Daily mail knows fuck all .A

It's a good thing the study wasn't conducted by Dailymail (https://www.anses.fr/en/content/lig...tting-diodes-leds-health-issues-be-considered). I work in LED industry and we use protective eyewear. Do what you want though.

 

[BoredToDeath]

It's a good thing the study wasn't conducted by Dailymail (https://www.anses.fr/en/content/lig...tting-diodes-leds-health-issues-be-considered). I work in LED industry and we use protective eyewear. Do what you want though.

Would ordinary sunglasses help at all or do you need any special kind of eyewear?

 

[slomocean]

hey all, I am reading through and have maybe 30 pages left. My biggest issue is understanding distances for different stages of growth with SILs. I see where some people start with the lights far away at the ceiling of microgrows and let the plant grow up into the lights by the end of flower, which kinda makes sense if the plants can tolerate/use the light better over time. some people talk about having 12w bulbs 6" away from seedlings. I have done micro grows with CFLs for 5 years and and happy with the .4-ish grams per watt I get. Got interested in the leds and here I am. I swapped my 1 sq foot veg box to leds and am waiting to use the 2 sq foot flower box that I swapped also. I may not have the height I need for the bulbs in veg tho. plants seem to not want to grow when sprouted. i am running 2x 9w SILs in the 1sq ft veg box. I am trying to sprout any of the old seeds I have and was able to get a couple of 5+yr old N. Lights to pop. they sprout, turn green stretch up an inch or so and then act like they dont want to grow any more. same thing happened with an old Blue Mystic that seems to be growing half as fast as plants have under the CFLs. Will being too close stunt the growth like that? I'd upload pics but my phone cam isnt working. I have them at 10" maybe 11 above the seedlings. should I go further or closer? they seem to not have grown at all today, it's weird. maybe just old seeds? thanks guys, love the thread

 

[PCBuds]

I just switched from CFL's to LED's and I'm having the same transition problems.

I had my five 10 watt LED's about 4"-5" above my seedling and bleached the leaves. They turned pale and yellow.

I raised my 5 lights for my next seedling and it worked great.

... they sprout, turn green stretch up an inch or so and then act like they dont want to grow any more. Will being too close stunt the growth like that?

It may not be stunted, just end up short, that can be a good thing in limited space.

I'm thinking your plant is getting enough light and doesn't need to grow more or bigger leaves and is instead putting that energy into root growth.
It'll grow more leaves when it needs to.

My friend had a spout under a single LED at 12"-18" and it stretched to about 4"-6" and fell over.

I have them at 10" maybe 11 above the seedlings. should I go further or closer? they seem to not have grown at all today, it's weird. maybe just old seeds? thanks guys, love the thread

Your 2 lights at 10"-11" sounds about right to me (but there's that whole inverse square law thing to consider)

Watch out for bleaching and try to keep them darker green.



This is what my White Widow feminized looks like now after 7 1/2 weeks.

The lights are closer now and she seems to like it.

I'm flipping it to flower in about a week.

 

[OneHitDone]

The only thing the Dailymail ever been good for was wrapping fish n chips in the 60,s and whiping my arse with.

I have noticed sils do get my pupil to go pin point but as soon as im away from it it goes back to normal just like the equatorial sun i walk in daily.
I spent years in grow rooms full of 1000w sylvania metal arcs no uv shield, get a free tan
I got serious arc eye from welding / tacking with out a shield 45 yrs ago
That healed after a night of pain = 20/20 vision after 3 days.

Daily mail knows fuck all .A

lol The old Peekaboo welding eh??

Interesting thread guys!

 

[man0os]

No till 164 watts of sils.
2 weeks in.

 

[noknees]

hey all, I am reading through and have maybe 30 pages left. My biggest issue is understanding distances for different stages of growth with SILs. I see where some people start with the lights far away at the ceiling of microgrows and let the plant grow up into the lights by the end of flower, which kinda makes sense if the plants can tolerate/use the light better over time. some people talk about having 12w bulbs 6" away from seedlings. I have done micro grows with CFLs for 5 years and and happy with the .4-ish grams per watt I get. Got interested in the leds and here I am. I swapped my 1 sq foot veg box to leds and am waiting to use the 2 sq foot flower box that I swapped also. I may not have the height I need for the bulbs in veg tho. plants seem to not want to grow when sprouted. i am running 2x 9w SILs in the 1sq ft veg box. I am trying to sprout any of the old seeds I have and was able to get a couple of 5+yr old N. Lights to pop. they sprout, turn green stretch up an inch or so and then act like they dont want to grow any more. same thing happened with an old Blue Mystic that seems to be growing half as fast as plants have under the CFLs. Will being too close stunt the growth like that? I'd upload pics but my phone cam isnt working. I have them at 10" maybe 11 above the seedlings. should I go further or closer? they seem to not have grown at all today, it's weird. maybe just old seeds? thanks guys, love the thread

stick with cfl for babies if you're familiar, i do. without dimming, experience, or a meter, you're gonna fry some kids.

on the very first page of this thread, blynx reveals that capped SILs produce about 7x the directional light per watt of cfl. uncappped, 9x.

not universal or exact, but generally, this should give you an idea.

 

[OneHitDone]

stick with cfl for babies if you're familiar, i do. without dimming, experience, or a meter, you're gonna fry some kids.

on the very first page of this thread, blynx reveals that capped SILs produce about 7x the directional light per watt of cfl. uncappped, 9x.

not universal or exact, but generally, this should give you an idea.

Have you noticed that the led gives an impressive spot reading but really not much coverage area per bulb?

 

[SandyFantasyman]

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[OneHitDone]

That actually makes it easier to get an even spread. I build my SIL fixtures in a grid shape that is almost the same size as the tent. No more COB hotspot with all the edges getting much less light. Obviously there is still some edge effect, but it's much less, and easily fixable.

I found the 5 socket x 5 socket I built for my 3' x 3' tent didn't quite cover as well as I'd like, so I moved it to one side and whipped up a 1x6 to fill the open area. The modularity and flexibility of this platform are so cool for a DIYer.

What is SIL? Sorry, new abbreviation for me lol

 

[SandyFantasyman]

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[SandyFantasyman]

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