The Next LED Rage: Quality White LED Tubes

[PetFlora]

Did some minor tweaking repositioning the hanger chain + I decided to take advantage of the 2 now open slots in my vanity fixture. I had 2 SM lights, one 5w the other 7w, so I added them. Total canopy wattage- 104 watts, but only ~ 2ft of the tubes is directly over the plants. Still, I think the rest of the lumens do not go unwasted. I believe they make the leds directly over the plant more intense, as it does not have to share its' light with an otherwise dark empty space. Dunno, maybe that sounds weird, but I think there is something to it.

So 104w SMD canopy + 39w RP globes under the canopy. FYI I rotate the plants once a day so that all sides benefit from the light


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[babelfish]

lil extra side lighting never hurt them girls i bet. I agree, fill in all those slots!

 

[bothof]

I'm interested to see how these do. I think some RED leds are really going to be needed on the flower....I'm watching this grow...We'll see!

 

[bothof]

Hello,

You wanted some of the info from my thread:

there was a nice par reading set done

http://growershouse.com/blog/hydro-...-grow-light-review-of-par-and-footprint-size/
https://growershouse.com/blog/stealth-grow-sg1250-ho-led-grow-light-review-test/
https://growershouse.com/blog/california-light-works-solar-storm-800w-led-grow-light-video-review/

there are vids with transcripts @ each of those

Here are my quick impressions:

These PAR readings always trouble me. It is just so misleading to give a one number PAR output and expect people to be able to use that number to compare lights against each other. That number is a cumlative reading of all the light output in the Photosynthetic Active Radiation spectrum. It shows nothing about how well a light grows a plant, because it doesn't take into account the spectrum the light is putting out. For example: You can make a ALL Red led light that would have a really high PAR reading, but wouldn't work to grow a plant.

Unfortunately there is no standardized system yet, but it's being worked on. The best way to compare lights is to look at the Spectral Irradiance graph which is usually read with an integrating sphere.

I'm done ranting, just feel like there is a lot of misinformation out there....

 

[PetFlora]

I'm interested to see how these do. I think some RED leds are really going to be needed on the flower....I'm watching this grow...We'll see!

I have it on vg authority that WW leds contain ample 630,
which accounts for ~ 95% of the PS of 660

Some strains may want/need 660, but not much more than 10%

My first grow with this strain I supplemented with RB UFO 90. My plan is to grow her clones without the UFO, but can add if needed


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[babelfish]

These PAR readings always trouble me. It is just so misleading to give a one number PAR output and expect people to be able to use that number to compare lights against each other. That number is a cumlative reading of all the light output in the Photosynthetic Active Radiation spectrum. It shows nothing about how well a light grows a plant, because it doesn't take into account the spectrum the light is putting out. For example: You can make a ALL Red led light that would have a really high PAR reading, but wouldn't work to grow a plant.

Unfortunately there is no standardized system yet, but it's being worked on. The best way to compare lights is to look at the Spectral Irradiance graph which is usually read with an integrating sphere.

I'm done ranting, just feel like there is a lot of misinformation out there....

hey i feel ya, I was using it to look at the light spread - to see what's appropriate for what height above the canopy Your right, there's no quality meter yet, i hope they do get to it..

I have it on vg authority that WW leds contain ample 630,
which accounts for ~ 95% of the PS of 660

Some strains may want/need 660, but not much more than 10%

My first grow with this strain I supplemented with RB UFO 90. My plan is to grow her clones without the UFO, but can add if needed


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very sweet, looks like a nice harvest!

I am of the opinion that adding all the light that you can as long as the area doesn't over heat is a path towards optimal.. but good luck either way!

 

[PetFlora]

I have experience with LED tubes (on aquariums and weed growing also) and I really don't recommend them for flowering cannabis because they have a terrible penetration. They are good for aquariums (where water and glass walls reflect the light back into tho the aquarium) and for office lightning. You can also use them for veg (instead of T5 tubes) and for moms, but for flowering, without a flat and spread canopy, the yield will suffer for sure.

I don't say that you can't grow weed under this light, but the results are bellow average.

We shall soon see. Pistils are plentiful and where they should be for this stage. Keep in mind my diodes are 5050 Samsung (very bright) + tubes are 18w

 

[PetFlora]

I am of the opinion that adding all the light that you can as long as the area doesn't over heat is a path towards optimal.. but good luck either way!

I bought all the light I can afford at this time, and will see it through, unless it becomes obvious that the nuggz aren't fattening up, then will add the UFO 90. Sister clones under 324 HOT5 watts

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[babelfish]

Sweet, I hope things go smoothly for you. I like to talk to my girls, and tell them what I hope for them and want from them - ever do that? Gardening is fun

 

[PetFlora]

I usually post pics once a week, but bud/pistil growth is so rapid since 6/29...

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[FONT=Arial, Helvetica, sans-serif]Good news for T5 users. COB LED tubes in a 4 color temps
http://www.alibaba.com/product-gs/509736275/COB_T5_Tube_light_LED_Tube.htm l
[/FONT]

 

[PetFlora]

delete double post

 

[bothof]

Wow, this is great! I'm keeping an eye on your grow. Good Luck!

 

[PetFlora]

Flip Date to 12/12 was 6/6

First 2 LED tube added 6/19, second 2 on 6/20

So just under 30 days of flower with 92 watts over canopy. supplemental light was 2 @ 9w Cree, but for 2 weeks one RP 17w Philips + one 22 w RP Utilitech = 39w total 131w


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[babelfish]

Looks like they are bushing up nicely - and i see trichomes all over! yahoo!

 

[PetFlora]

When I rotate them, to get more even coverage under canopy, they emit a hash fragrance

Each bucket only has 1- 1.5g of nutes. I changed nutes yesterday

Root Porn.

First 2 pics are plant on left inside tent; next 2 are from plant on right


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[PetFlora]

Holy Crap > $70 PER tube WTF

http://www.bulbamerica.com/light-bulbs/led-bulbs/led-tube-lights-1.html

I paid $35/ so 2 for the price of one.

http://www.atgelectronics.com/tube/E58i-LED-Tube-(HO-Version).html

 

[babelfish]

Holy Crap > $70 PER tube WTF

http://www.bulbamerica.com/light-bulbs/led-bulbs/led-tube-lights-1.html

I paid $35/ so 2 for the price of one.

http://www.atgelectronics.com/tube/E58i-LED-Tube-(HO-Version).html

Looked at those, got confused:


EnduraLED 22 watts 100-277 volts G13 T8 LED 48 inch Tube Light

SKU 418723
UPC Code 046677418724
Manufacturer Philips
Base G13 2-Pin
Bulb Type LED Bulbs
Color Rendering Index (CRI) 85
Color Temperature (K) 4000K
Dimmable Compatibility Non-Dimmable
Luminous Flux (LM) 1650
Maximum Overall Length (in) 48.00
Rated Life (Hours) 4000
Shape T8 48 inch
Voltage (V) Multi-Volt
Wattage (W) 22W
Warranty 3 Year Manufacturer Limited Warranty

think that's a typo?

yaknow i'm going to need to do some side lighting in the tent, 4 corners worth. your spot could make a heck of a case for that.
too bad there's not a led tube that does light on all sides :/

 

[PetFlora]

Morning Photos

I shudder to think what these would have looked like had i not checked rez temps yesterday. a few leafs gave it up, but otherwise, all ahead full

The buckets are too small to add a quart btl of ice, so I decided to take each plant out individually and drop a 1/2g ice btl inside for 4-5 minutes. Will repeat as needed.

Since the plants were more camera accessible, I took photos


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[PetFlora]

EnduraLED 22 watts 100-277 volts G13 T8 LED 48 inch Tube Light @ $73, let me help you unconfuse yourself

iBrights come in 3 color temps. I went with 1 NW (5000K) + 3 WW (~ 3000K) = $140 for 4 tubes!

I think what confused you was that they list 3 sizes, which means 3 different lumens and 3 different wattages. I bolded the 4ft specs

They produce ~ 100 lpw with CRI of 95


Length: 600 mm (1.96 ft), 1200 mm (3.93 ft), 1500 mm (4.92 ft)
Input Voltage: Max.36VDC [FONT=????](Input Voltage of External Power Supply: 100-277VAC[/FONT][FONT=&quot])[/FONT]
Lumens: 875-925 lm, 1750-1850 lm, 2150-2250 lm
Power Consumption: 9W±1W, 18W±1W, 22W±1W
Power Factor: >0.95
Housing: Aluminum
Color Temperature:
2800-3200 K
4250-4750 K
5500-6500 K


Could the Philips possibly be twice as good? IDTS

 

[babelfish]

it was actually the 4000 hour lifetime that confused me, should htat be 4k or 40k - if it's led 4k hours is quite small