How many watts growing weed

Growth is now back up to scrog which is 18" above pots. I'm documenting this grow for personal research. I wanted to try led but wanted to see how the plants turned out with the same light only more power and the revegging of those same plants. Not sure if it will be worth it. Time in veg is comparable to seed, a little faster, however current stalk diameter and root structure far surpasses a seed start at this point. Joined: Mar 13, Messages: Likes Received: Watts goes by sq ft not by plants.

You want watts per sqft of grow space. Actual watts not equivalent You can grow one plant with 50 watts or watts Agree x 1. Wattage per square foot depends on lighting type. Like x 1. Vegged at less then half that amount. Wonder woman.

She's a branchy slow vegging bitch. This is vegged about 4 months These wavelengths of light include ultraviolet and infrared light, and cannabis plants use this whole spectrum to photosynthesize light into simple sugars. They can also help prevent mold and mildew issues. Need to know the latest and greatest of marijuana news? Alice has you covered! She loves to travel all around the globe and manages the pick up important bits and pieces from all over the place Cancel reply. Save my name, email, and website in this browser for the next time I comment.

I see a couple of red lights mixed with the white ones. Will I be able to produce with this? From the article, it looks like yes. Just wanted your thoughts on this. Thank you. What exhaust fans, would be good to use. I found a herme after 4 -5 weeks of Flowering. I took it out of the tent as soon as I discovered it. How do I know if I got it out in time before it pollinated my other femmales? I use 3 x 5 metres of LED strip lighting in white, warm white and cool white in a grow box with silver reflective bubble wrap of dimensions mm high, mm wide and mm deep.

Plants are thriving on less than 2 amps of current draw. They remind me of a disco with strobe lights, haha. LED Grow Lights. Why is LED more efficient to use than other grow lights?

Even if they do provide output info, they often only take a reading dead center below the light, where the output is strongest. They do not give you readings for the rest of the coverage area, usually because the light is very weak around the outside of the area. All lights will be stronger dead center, but good lights will still get you decent readings around the outside.

Light output can be measured in a number of different ways, but the most useful measurement for plants is ppfd, or Photosynthetic Photon Flux Density.

This contrasts with another light measurement lumen, which measures the amount for light that is visible to the human eye.

Plants will do fine with less than that, but those are the numbers to shoot for if you want to optimize yields. These footprints show the PPFD output of a light at various locations in the coverage area.

The best lights will not have sky high readings in the middle and thus much smaller ones around the outside, even if the manufacturer only provides the figure for the middle , but good readings all around. Fluorescent lights only make sense for a plant or two.

Any more than that and they become too inefficient. This article covers how to determine how many fluorescent bulbs you need. I doubt that would be enough for 3 plants, but maybe for one. I would go with two lights that cover 4 by 4 feet each 1. At an absolute minimum, go with 4 of the Phlizon s link in the comment above , but larger lights would obviously give you better yields.

If budget is not an issue, go with 4 SFs. I have a 4 x 4 area have currently acquired a mars hydro ts what do you think of my light coverage. Do you think I have too much light for my space to flower at a height of 12 inches. Will I be in danger of light burn. Have you seen or heard of any results using this light.

Hi steven im a big fan of your site Im now using hps lamps watt 5 x 5 feet the yields are great but the electricity is expensive and want to change to LED I want a led for growth and flowering but one with the best harvest yielding results which led lamp can covers 5 x 5 feet with the result about the same as a watt hps lamp?

Thanks you. I have asked for some info before I wanted to make purchases and I was told that I will not achieve the same harvest as hps watts with the spider farmer sf i have read it is the same like hid now im doubting is the spider Farmer isf good enough to harvest at least grams?? Just a idea. Hi Ricardo thank you mate I almost lost dollars Because it was recommanded to me Like it is the same it is a Shame you never can make that comparison.

Yes it is sad, the thing is when someone is used to hid lighting and the weight they can achieve switching to led can be misleading, they recommend around All I can say is led lighting is abit more efficient, abit cooler to run!!

Ricardo can you tel me now I know the spider farmer is only cheap in the Bills Wich led is good to compare with hps led minimum watt Not in the spectrum only But in the result. So if you are looking to save on power costs have you thought about a dimmable ballast for your hps??

Optic 6 optic 8 or optic 8 plus!!! Check the specs especially the power draw I think the optic 6 pulls around watts which is nice!! The problem with led is the more they pull from the wall the more the light costs?? If money is no problem for you just keep looking untill you find one with a power draw close to what you need. Thank you Ricardo Im pulling now between 0,8 and 1.

I have a 15 x 15 grow room. How do you recommend I setup my room? How many lights? I do plan on getting more cfls next week. As of now I have 3 30w, 26w and 3 14w. I know the 14 w aren't doing jack now, didn't know it before so those are the ones that I am trying to replace.

I am at the end of my first week of flowering, will my ladies still be able to flower being under 10, lumens? And will the process just take longer? Actually, it is said that a 90W LED is enough to shine three plants. Post reply. Insert quotes…. Similar threads H. How much did you pay for lights? Hashashin Jun 11, Grow Lighting.

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