The Grow Awards 2025 🏆

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

veg

FromAbovestarted grow question 5 months ago

Can i grow a photoperiod under 16 hrs of light to save on electricity in veg?

Solved

Setup. Lighting

likes

Hoothootanswered grow question 3 months ago

Yes you can

likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

Booster light did not turn off during night time 6th week of flowering AUTOFLOWERS 20/4 I accidentally left 20w 600mn booster for 3h during dark period (I noticed as switched off) Will they hermy? To be honest my growbox has holes so it was never a total balckness.

Setup. Lighting

9 months ago

6

5

Solved

Hey folks, newbie here! Any experiences upgrading the older model of Mars Hydro TSW 2000 with a custom controller/dimmer for Home Assistant integration? Insights appreciated! Thanks!

Setup. Lighting

Setup. Other

10 months ago

4

2

Solved

Sorry hat the question earlier before but I'm new here so I dont know how to undo the solved quesion status. The LED has about 300W and I want to dimm it. not simply turn it on/off. Preferably with some kind of integration in home automation systems like Home Assistant. Thanks :)

Setup. Lighting

Setup. Other

10 months ago

1

2

Solved

Light watt Ts1000 150 Watt mars hydro. Will this grow 3 plants?

Setup. Lighting

9 months ago

1

1

Solved

First grow. Growing autos from meph in a 3x3 tent. They are in the w/3 of flower. On 24 hr light.(Accidentally) having a heat wave in my area and can't keeps temps down below 80-85. Will it hurt anything to switch to 18/6 now so I can have lights off when it's hottest part of day

Buds. Other

Setup. Lighting

9 months ago

7

5

Solved

When to switch to red?Hey all growmies. I have a 420 FB Purple Punch going. She’s three weeks old tomorrow from sprout. I’ve had her under blue light so far. When do you reckon I should switch to red spectrum light? What do you guys think?

Setup. Lighting

9 months ago

3

Solved

InTheSmallSpace

When did the flowering start?The LED panel, after switching (Ts600 Mars Hydro), stayed slightly on even during the dark hours. I managed to fix the issue, but I'm not sure how to count the flowering period. The plant had shown some differentiation, a few pistils, and a bit of stretching. What do you think?

Setup. Lighting

10 months ago

3

5

Solved

Light recommendation what led light would you recommend for a Secret Jardin DS150W (77x150x200cm)? It need to have a remote driver and be full spectrum. It could also be 2 lights.

Setup. Lighting

10 months ago

3

Solved

dli 40x40 growbox lamp distance problem hi guys, I have a ts1000 at a distance of 50cm they tell me to lower it to 40cm but the dli would greatly exceed (60 dli photone) the recommended threshold of 40/45. Having a 40x40 growbox, in your opinion, at what distance should I keep the lamp?

Plant. Other

Setup. Strain - Autoflowering

Setup. Lighting

10 months ago

1

1

Solved

Too much wattage?Is 300w too much for this early on? Going on week 2 just repotted today

Setup. Lighting

10 months ago

4

4

Solved

Help de decide tent and light for my setup I want to so some quick yielts with autoflower. Maximum of 4, with a 100 watt light. - What tent do you recommend (will a 2,3 x 2,3 mars hydro be enough?) - What light do you recommend? (i see many 100 watt lights but some people pushing it with 300 watt lights, i won;t do co2)

Setup. Lighting

a year ago

3

4

Solved

Should i raise the lamp to force the strech?I had the light the past few weeks 30cm over the plant on 100% wich has 930ppfd in 20h duration it was all together 65 DLI. I want to force the strech from now. Do you think i should raise the light up tp 50cm over the plant? The plant made nearly 20cm within the past weeks.

Plant. Too short

Setup. Lighting

a year ago

6

2

Solved

Plant touching lights Plant almost touches my light.. can’t hang it higher any tips on how to deal with this?

Setup. Lighting

a year ago

1

2

Solved

LED BAR light Sponsors?Any good sponsors or deep discounts available for a good 200-300W 24"x24" or so Bar light with UV for a high 24"x36" space? My old shit doesnt spread as well as these new bar lights. Ill make it look good ;) Thanks!

Setup. Lighting

10 months ago

1

2

Solved

Lights Hi guys! What light should I get? The viparspectra xs1000 or the marshydro ts1000? I intend to grow in a 2x2 space. Would the viparspectra be as bright as the marshydro because its more efficient?

Setup. Lighting

a year ago

1

3

Solved

best LED light 4x4 Best LED grow light for a 4x4 Could anybody please suggest which LED light they would recommend for a 4x4 grow. Willing to spend around £500 maximum as I really want to invest however most videos on YouTube are marketing their own. Really appreciate your advice. Many thanks!

Setup. Lighting

a year ago

25

12

Solved

MarsHydro FCE4800 for a 4x4 grow?Is the MARS HYDRO FC-E4800 480w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Would you suggest any alternatives? Really appreciate all the advice and will be making my purchase with the advice you have all given me so far!

Setup. Lighting

a year ago

1

5

Solved

Lux Meter and Hydroponics Who has experience with using LUX meters to position lights in various stages of hydroponic growth. I feel I am giving mine too much light, based on the readings, but don't want to pull them back. Currently 10" from the plants.

Setup. Lighting

a year ago

6

6

Solved

Is this MarsHydro light the best choice for my 4x4?Is the MARS HYDRO Smart FC-E6500 Bridgelux 680w the best option to use for my 4x4 tent. Will be doing 9 CBD auto flowers as a hobby. Thankyou community!

Setup. Lighting

a year ago

2

2

Solved

PAR 300 for seedlings?par at 300 for seedlings but still leggy WTAF

Setup. Lighting

a year ago

3