light

hi all, I've started a DWC (White Widow) 4 weeks ago. I have 4 air stones with a 400W LED light (24 inches above). Im using Flora Series for nutrients, I use 50% of the dosage, always in the same order. 1 week ago I noticed that the new leaves had yellow/orange tips. What it could...

I'm in the 4th week of flowering a Gorilla Glue #4 (GG#4), and have been using a combination of natural light (via window), and CFL bulbs. After doing some research, I decided to purchase a couple of these bulbs TaoTronics LED Grow Lights Bulb, Grow Lights for Indoor Plants, Plant Lights, Grow...

Hi Guys, I'm designing a little nursery box where I want to start my seeds and grow young plants for about 3 weeks. The box will be made in white styrofoam and will be 50x50x50cm in dimensions. I'm thinking about using white cob led stripes attached to the roof of the box. The question is how...

My grow operation is quite small with a 2' x 2' x 4' tent with a 450 watt LED light fixture. The fixture has two switches, a VEG switch and a BLOOM switch. The instructions say to flip on just the VEG switch until flowering when you would turn on the BLOOM switch also and have both turned on...

This is Skunk #1 from seeds I got from Seedsman earlier in the year, Its a indoor grow with a Truth Lighting 16 array LED light. Seeds were started in grow blocks and transferred to net pots and hydro after showing roots. Using the Heavy 16 Veg and Flower, Finish, Flora, Root, and Fire...

hi i am putting a tent in my attic and need a grow light that cant be picked up by police helicopter also i have to pay for my electric so it needs to be economical to use thanks for any replies

A very big thanks to Budmaster for sharing their gear with us for this review! Here’s a company who’s goal isn’t only to sell lights, but also to solve customers’ problems. They’ve introduced a concept that addresses a niche in the market - Mother plants and Early Vegetative Propagation. The...

I am building a desperate flowering area, 5' x 5' and wanted to string some QB 304s (ill even settle for qb288a right about now) but can't seem to find any at either Cobkits or HLG sites. Anyone else know where else to purchase them? Thank You, *.*.* Cedru *.*.*

Conclusion: At full sun spectrum at 100,000 lux or 9290 lumens per sqft additional lighting will provide no benefit to photosynthesis rates. At full sunlight temperature has a large impact on photosynthesis rates approximations for CO2 consumption 18C 300ppm 20C 325ppm 22C 350ppm 24C...

Below are my beauties, so stoked for my 2nd grow under simple 4 blub T5 and couple extra leds floating around. I'm on day 50-53 for each of these guys. The left girl is Auto Sin Trabaja CBD and is about 14 days since pre-flower and she is 42" tall!!! The right girl is Auto Speed Bud and...

Evening guys. I'm looking for a bulb that would let me add some light to the lowest parts of my growbox, so the lower tops may yield better. And I found this bulb. My tent is 40cm x 40cm x 120cm (or 1.31 feet x 1.31 feet x 3.93 feet). Here is one of the recent pics And now that I...

Hi All, I have a MARS (Aqua) Aquarium 300W LED light dimmable to 100W I was wondering if this light would be acceptable for seedlings/clones and maybe even Veg? I found a couple of sites were they say yes but I would like to know what you guys think. Thanks

Hey all. I have a 2'x2'x4' grow tent that I got on Amazon. It has a place to insert ducting on the top and the bottom. It also has two little mesh rectangular flaps that you can open up or leave closed, sealed with velcro. With the fan I'm using for my out-take (at the top of the tent), it's...

Hi Guys, I recently Upgraded to a premium LED light. I have a few seedlings (2 weeks old), and they just don't look healthy to me. Or at least not as healthy as they were under my previous much cheaper less powerful LED light. I have since consulted with the manufacturer who have advised I had...

Hey guys , this girl is white widow , in almost 2 months , 25 C is temperature , %40 ,% 50 moist , i am using advanced nutrients and 600 watt my light . my plant can not suck water in to soil , and water pass out through soil quickly . any ideas that is why ?

So I'm starting a grow soon. I haven't tried growing since the 90's when it wasn't legal and it was in a closet with the poorest of tools. I've gone ahead ordered a tent, light, and a filter. Below I will list all of the equipment. I'm happy to take any input from the hive mind, as long as you...

Hey :) This plant started out as a clone - didn't have an ideal environment but survived nonetheless. Right now I'm giving it 250 W HPS, organic soil and "dutch pro take roots" fertilizer. It's growing, but new leaves are looking sick :( from what I've read, this could be Zinc/Iron...

Okay, so I know this argument has had to death, but what I've noticed is that there's always this idea of, "Well, having a dark period is more natural for a plant, so that's better." Despite the fact that there are places in the globe where plants do get 24hrs (or near that) of light, and that...

What would be the best light cycle trough out my growing stage

Hello, this will be a continuation of my last thread, where I hand-measured and plotted the PPFD of Amare and Mars LED's with a hydrofarm PAR meter. Since then, I've also measured the Mars Reflector 192, Philips CMH 315w, etc. The point of this research is to determine the optimal footprint and...