light

I'm just curious to know if any and all ambient light has to be accounted for when switching to the flowering stage. Is 100% darkness absolutely required and if some minor ambient light does occur during the 12 off of the 12/12 cycle, what effects will it have?

I randomly decided to build a grow space and try my hand at growing a few cannabis seeds. I received some random seed and decided to move ahead with the project./ My grow space is a a storage area that is 2' wide, 2' deep and about 4' tall. started out pretty basic. I started seeds...

Had a small bit of light getting in...2 plants budding good the other 2 ..not....After fixing the small bit of light ...will the other 2 begin to flower...it's been 3 weeks...The other 2 are budding great?

I'm growing Purple Kush and Pineapple Express in DWC. The PK is a few weeks older than the PE. I'm growing in a 5 gallon tote in a 3.5x3.5x5'6" tent. I'm using RO water and Dutch Nutrient Formula Gro A and B. My ph is 5.6-6.3 as it rises every few days I Ph down. They are growing under an LED...

If you have a semi professional camera and on some phone cameras you will need to turn on the flash and increase the shutter speed to to fastest setting on the camera. That way when you take the picture the light from the flash is the light that is captured with the picture instead of the...

I done the flip 3 weeks ago...didn't realize before I fixed a tiny bit of light coming through the cool tube exhaust...2 plants on rear side budding great the 2 exposed to light are still stretching few white hairs but nothing else...what can I do?

Hey everyone I was all excited to get my Mars LED but eBay free shipping means 25$ shipping and I don't got it lol. Looking for another light I can afford now, trying to find the best I can at 75$ or under. I found a 150W ufo grow light 10 band spectrum and with red blue and white colours...

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Hey everyone, I'm new to growing and to this forum I have 3 sets of plants. The first being Acapulco Gold 10 weeks into flowering almost done and have been my learning curve. The 2nd set I have are some northern light auto they have been Champs are doing awesome even tho I stunted them...

Has anyone used a mars hydro light with the bloom button? I am currently just over half way thru a 2 month autoflower kush, the guide for the plant is 60-70cm, she is currently 90cm and buds are appearing everywhere. Ive had both veg/growth and the bloom option on for about a week. She just...

I am wondering about light times with auto flower does exact light pattern have to followed every day or can it vary from day to day Say it got 16/8 one day and 14/10 the next and then maybe 15/9 do the light times have to be exact or is close good enough

Hey all, Shiggityflip here with a sponsored journal from Black Diamond Grow lights. Featuring the Perfect Sun 1000, a 520 watt light that puts out heavy PAR numbers, competing directly with the output below a 1000w HPS. I first started working with this light last grow, you can see it here in...

Hey guys hope your all well and good today :) i am a first time grower very enthusiastic about seeing the process of cannabis growth from start to finish, I bought 3 super skunk seeds and only managed to bring 1 to life, then my landlord had to re-decorate so i couldn't continue my grow so...

Recently many customers asked why we didn't make COB light? Actually we did.But the result of the growing with COB grow light is not good, so we stopped produce it.

My growbox is 80x80x160 cm. I have 250W HPS and 200m3/h extract fan. If I have light 25-30cm from plants, temp is around 29-31°C which is too much. So I must have light at around 45cm from plants, which give me 27-28°C, but I lost some lumens. So my question is: which is better - to buy cool...

Hi guys, I'm new in this forum, and I would like to share with you this new experience ps: I had not planned to create a topic, so I haven't a many pictures of the past weeks. This is my Setup: - Closet 60x90x170 - 1 Holographic Series 1 Led (just for the first 3 week of veg) - 1 Hps...

first off I'm very new to growing but for same reason the leaves on my blue treacle seem to be very light green I'm wondering if this is normal the plant is 3 days old under a 250 light with coco soil I thanks for any help in this matter thanks for the help

Anyone know if this will cause shock. Light is 32 inches away.

Ok guys this is my first grow and is going awesome until yesterday. I had three clones to start and they got to big for closet so i had to move one to my father in laws house and started flowering them. Now in the closet the humidity was never a problem always at 30%. I bought a new grow tent a...

I have been checking around for a light mover for my grow room. I have checked out light rail and some of their reviews. I have been comparing products and such. AgraMover's seem like they are more durable and can with stand some serious weight. My question is has anyone used or have an...