Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Back to Grow Questions

Adding in an LED board for the last 2-3 weeks of flowering?

Duddersstarted grow question 4y ago

Currently running a 400w HPS lamp. Would there be any significant benefit in adding in a 100w LED board on purple or blurple?

Solved

Setup. Lighting

likes

Organomananswered grow question 4y ago

No. Just a waste of electricity. Your 400 watt HPS will be far superior and also be completely adequate.

3 likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

Are these LEDs good?What do you growmies think of these lights? They're LED's, I have 2 of these going and a few other lights. These though, I don't understand much about electrical info. My green seems to like them ok but are they good? I know to the experts out there, this probably seems dumb, but

Setup. Lighting

5y ago

4

2

Solved

Okey dokey yall I need some guidance on lighting distance. So these clone's buds all look different and I'm not sure if my SF 4000 needs dimmed down. I just got the AC rocking so it's way cooler. what intensity or distance do yall use for these boards? love ya

Setup. Lighting

4y ago

1

2

Solved

Is the led Light enough?Not slowly picking me equipment for indoors, I wanted to ask you if this LED is enough when I get it 2 times. https://www.lumeri.de/lumeri-sq200.html

Setup. Lighting

5y ago

2

Solved

Longer Light Cycle - Mid Bloom Is changing the light cycle of an autoflower from 18/6 to 20/4 in mid flower too stressful? Doing so would bump my DLI enough to keep my existing light through harvest. She sleeps like clockwork but less so now in mid flower. Will she adjust in a couple days to a longer day?

Setup. Lighting

4y ago

2

1

Solved

Looking for someone to look at my pics and give me advice on ventilation for mini grow room. Also if my plants look good for day 3? Any tips? Thanks!!!!Hi, wondering is you guys could look at my enclosure and give me some ideas as to when and how I should provide some air circulation to my seedlings? I plan to keep them in here for the next couple weeks like a small grow room. Also, do they look happy for day#3? Advice? Thanx

Setup. Strain - Autoflowering

Setup. Lighting

Setup. Ventilation

5y ago

4

2

Solved

Very technical question - LED wattage vs actual power used My LED is a Phlizon 600w but the power draw is only around 97w at the plug. Perhaps a silly question, but is my diary entry supposed to be 600w or 97w? Looking at other diaries, it looks like yield is expressed as weight/watt and want to be consistent.

Other. Other

Setup. Lighting

5y ago

1

2

Solved

Como regular el calor en el armario Tengo un armario 1x1 con una bombilla a 400w, está ha unos 50cm de la planta y su temp va de los 25ºc a 30ºc mientras la bombilla está encendida, luego en la floración la pasaré a 600w como puedo regular la temp para que no sea tan alta y que distancia debería tener de la planta?

Other. General questions

Setup. Lighting

Setup. Ventilation

3y ago

1

1

Solved

Slow indoor seedling growth 4 days since sprout, issues with light timer, seedlings ended up getting 48 hrs of light after they sprouted, and this AM I found that the timer did not turn the light back on so it got 11 hours of dark last night instead of 6. Could this be detrimental to seedling?

Setup. Strain - Autoflowering

Setup. Lighting

Setup. Seedling

5y ago

1

1

Solved

Yellowing leaves after first Mainline top. Light stress?Just checking in here, I am pretty sure this is light stress. it was at 18" (specs say 18-24" during veg) and she was likely pretty stressed after having her top cut off!!! I have raised light to 23". Am I on the right track here?

Leaves. Color - Yellow

Setup. Lighting

Techniques. Main-lining

4y ago

1

3

Solved

Light type and distance from freshly sprouted seedling What is preferred for a seedling that has just sprouted. A 23W CFL and at what distance or a 300 W led grow light and at what distance? In a closet that is 3X2 ft. Thanks

Setup. Lighting

4y ago

3

Solved

Hi guys, My LED light from my tent just stopped working, it might have been the humidity or straight water in there. The new lights might arrive 4/5 days to arrive. Do you think my plants are going to die? you can check my diaries if you need. Thanks for your help.

Setup. Lighting

5y ago

2

2

Solved

Hi growers. I was reading some stuff about LED, about the light color. So i have veg and bloom switches, should i keep both on when growing autoflower? Or keep veg until start of bloom and then work only with bloom light ou even both lights on bloom? Thanks for all the help

Setup. Lighting

5y ago

6

3

Solved

New person to grow, what is picture with lamp?Hi! I just to start first time on weekend is GD safe? I just now have a mars lamp it is looking like recommend and cheep but is difference picture with numbers and I do not know what is this. Can someone help me what high I should put it? I am with auto is this 12 hours or more?

Setup. Lighting

4y ago

4

4

Solved

Low Humidity and high temp or high humidity and low temp?Do you think it’s better lower temp and higher humidity (like 27 degrees c and 80 % humidity) or higher temp and lower humidity (like 29 degrees c and 60 % humidity)? I’m just waiting for the humidifier but in the meanwhile I have to fix somehow. Thanks!

Setup. Lighting

5y ago

9

5

Solved

I need help choosing a better light for my single plant microgrow!H50cm W37.5cm L57cm Now using 1 household 13w Phillips LED 2700K for flower, a 120w CFL for veg and I use a cheap 20w dual Spectrum LED that I'm sure does almost nothing. See pics for convo with led sales guy. Is the height really that much of an issue with the light intensity?

Setup. Lighting

5y ago

3

4

Solved

T5 "full spec" 100W x 4 and 1 x 200w CFL (Wedging Bulb)High! I got 100w/total, 4x1 T5 Led-strips 40cm long 2cm wide (DIY-lamp, every strip is on a fitted plate 3cm between etch other). Is this lamp enough for 4 plants threw Flowering stage? I got a 200w CFL Wedge lamp, can i somehow combine T5with the CFL lamp in a smart way? Peace🙏

Setup. Lighting

5y ago

2

1

Solved

I am growing one plant of OG KUSH AUTO strain from Nirvana with light setup of 300watt of led grow light. What should be the distance between light and plant during various phases of seedling,vegetative, flowering? I am using soil as grow medium.

Setup. Lighting

5y ago

2

Solved

Lamp to plant distance for marshydro TS1000 Marshydro TS1000 i am in flowering phase and have my lamp 25 cm over the canape and the dimmer on 100% is this to much for early flowering stage ??? I would like to here from people that are running marshydro TS1000 too

Setup. Lighting

4y ago

8

7

Solved

What distance is the best to star with the 150w cfl bulb ? the plant with 6 day .Thanks

Setup. Lighting

6y ago

2

2

Solved

I have a 2x4 tent I think I’m going to flower 2 plants in in a SCROG in 5 gallon pots. I have 2 Mars Hydro TSW 2000s (300W each), is this going to be overkill on lighting?

Setup. Lighting

3y ago

1

4