Lights for flower

Ryboburton · Mar 6, 2020

Hi guys. So I am a first time grower. Was planning on building two grow boxes one for flower one for veg. However it would take up almost all my room to have both with my space. So.... was thinking about vegging in an empty closet with an led to eliminate heat. However right now I am using a 315 lec and it’s working great but puts off too much heat for a closet I think. So my question is would I still get decent yields with two 315 lec lights for flower. Originally planned on using a single bigger light for flower but now that I already have one just thought I would see what the forums thought before I do anything. Thanks

Greenthumbjohnny · Mar 7, 2020

I currently use two 315 LECs and the yields are excellent! I previously used HPS for years and they are tried and true as everyone knows. I was looking for power savings, so I took a leap of faith on the LECs and never regretted it. The 2 LECs use about 704 watts compared to my HPS that was over 1k. I am yielding the same and saving power so it was a win for me and I never looked back. Now don’t get me wrong HPS is great! However, I was in the same situation you are currently in. Closet, limited space etc. If you can, vent the closet for sure. Also a side note, some LED lights put off more heat that you think. I would suggest looking at some T5 lighting. I use two or four 54w T5’s 6500k depending on the situation for seedlings/cuttings and early veg. I love my 2 LECs and plan on ordering another for just veg with the 4200k bulb. Buy the 2nd LEC you wont regret it! Good luck, Happy growing!

Burned Haze · Mar 7, 2020

As a suggestion Use your LEC/cmh for veg stage dominantly vs flower stage ...I use mine for that ( on light rails, great lights and they make the plants have good inner nodes and the replacement light vs a my way better )

now dedicate a led for flower and run co2 and the environment vs hps is higher so therefore your vpd ( dehumidifier and a/c won’t be pushed as hard when lights)

hps= 75-78f
Led= 80-84

& ^ this is canopy temps! Following temps and humidity levels will be 40-60% better and your plants will thrive. My de’s and tradional hps are just sitting in my lung room and I offered them to many people lol

Good vpd guide:

The Ultimate Vapor Pressure Deficit (VPD) Guide

"Why devote an entire guide to VPD?" you might ask. The answer is that the vapor pressure deficit (VPD) is extremely important for growing plants. VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while...

pulsegrow.com

For second grow tent or box, as a suggestion for brands for your led ( don’t know your size but guessing it’s small, you can obviously look around after on the website )

Timber Model 3VL

Model 3VL

This three (3) COB LED light fixture features Bridgelux Vero29 COBs and a Meanwell driver. Remote driver placement helps with managing heat and custom color temperatures are available. Designed and engineered to cover a 2 x 4 coverage area for full cycle/flowering.

timbergrowlights.com

HLG 225 is equivalent to 315W CMH

HLG 225

HLG ELITE is 225W LED lamp is powered with our custom designed high efficiency Full Spectrum White LED with boosted Red and Deep Red LED. HLG 225 is equivalent to 315W CMH.

horticulturelightinggroup.com

you gotta pay you play, remember those reflectors & bulbs year (it will pay for itself in first few rounds ... duh ) .. everyone is different eh

PipeCarver · Mar 7, 2020

Ryboburton said:
Hi guys. So I am a first time grower. Was planning on building two grow boxes one for flower one for veg. However it would take up almost all my room to have both with my space. So.... was thinking about vegging in an empty closet with an led to eliminate heat. However right now I am using a 315 lec and it’s working great but puts off too much heat for a closet I think. So my question is would I still get decent yields with two 315 lec lights for flower. Originally planned on using a single bigger light for flower but now that I already have one just thought I would see what the forums thought before I do anything. Thanks

Hi, welcome, What size space do you have
Check out https://www.thcfarmer.com/threads/bigcubes-grow-show-and-tell.104863/
to see what can be done in a small space.

I built this box for seedlings and starters that's fixed a flaw in my system. I vent with a fan I pulled from an old xbox I had and a 12v adapter from an old shaver.

PipeCarver · Mar 7, 2020

Burned Haze said:
As a suggestion Use your LEC/cmh for veg stage dominantly vs flower stage ...I use mine for that ( on light rails, great lights and they make the plants have good inner nodes and the replacement light vs a my way better )

now dedicate a led for flower and run co2 and the environment vs hps is higher so therefore your vpd ( dehumidifier and a/c won’t be pushed as hard when lights)

hps= 75-78f
Led= 80-84

& ^ this is canopy temps! Following temps and humidity levels will be 40-60% better and your plants will thrive. My de’s and tradional hps are just sitting in my lung room and I offered them to many people lol

Good vpd guide:

The Ultimate Vapor Pressure Deficit (VPD) Guide

"Why devote an entire guide to VPD?" you might ask. The answer is that the vapor pressure deficit (VPD) is extremely important for growing plants. VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while...

pulsegrow.com

For second grow tent or box, as a suggestion for brands for your led ( don’t know your size but guessing it’s small, you can obviously look around after on the website )

Timber Model 3VL

Model 3VL

This three (3) COB LED light fixture features Bridgelux Vero29 COBs and a Meanwell driver. Remote driver placement helps with managing heat and custom color temperatures are available. Designed and engineered to cover a 2 x 4 coverage area for full cycle/flowering.

timbergrowlights.com

HLG 225 is equivalent to 315W CMH

HLG 225

HLG ELITE is 225W LED lamp is powered with our custom designed high efficiency Full Spectrum White LED with boosted Red and Deep Red LED. HLG 225 is equivalent to 315W CMH.

horticulturelightinggroup.com

you gotta pay you play, remember those reflectors & bulbs year (it will pay for itself in first few rounds ... duh ) .. everyone is different eh

Nice stuff but Wow the price, There's not much savings when there's so much output to buy top line equipment. I'd like the both HLG 550's but way out of my league.

Sure nice lights are great but.

I don't believe it necessary to spend a whack of cash on fancy lights. The quality of the weed comes from more than lighting, a good grower can grow monster killer buds with $50 lights. The environment, genetics, TLC & skills play the major roll.

I think you give BigCube a cup full of sand, a 60w incandescent light and an old seed and he'll grow a 3 ft flowering monster bud in 3 months.

Lights for flower

Lights for flower

Ryboburton

Greenthumbjohnny

Burned Haze

Guest

The Ultimate Vapor Pressure Deficit (VPD) Guide

Model 3VL

HLG 225

PipeCarver

PipeCarver

The Ultimate Vapor Pressure Deficit (VPD) Guide

Model 3VL

HLG 225

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