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how many cfls are needed per plant

by Jordon Paucek Published 2 years ago Updated 1 year ago

Mix & Match! Just aim for about 150W of CFLs in Total Per Plant to Start, and stick to relatively smaller size bulbs if you can! If you want them to screw into regular light bulb sockets, use ones with a “medium base”.

Full Answer

How many CFL bulbs do I need for a small plant?

Start with about 150W worth of CFLs, which is enough light for one small plant 2.) Smaller bulbs = better results Because the penetration of CFLs is poor, many smaller CFLs is more effective than a few big CFLs because they can be spread in an array around the plant.

How many CFLs do you need to grow marijuana?

CFLs that are in the 40-42 watt range are great for growing marijuana, and also make great seedling, clone and/or supplemental lighting How Many CFLs Do You Need To Grow Marijuana? Follow these principles with CFLs to get great yields every time: 1.) Start with about 150W worth of CFLs, which is enough light for one small plant 2.)

How many grams per plant with 150W of CFL?

So if you use 150W of CFLs (as recommended to start with each plant below) you can expect about 37.5 grams, or a little over 1 oz per plant. If you add more CFLs for each plant, you will increase your yields somewhat proportionately to how many watts worth of CFLs you add.

How much yields can you expect from a CFL grow?

This will help you estimate how much yields to expect from your CFL grow, but you need to remember to take this with a grain of salt. A very general rule of thumb is to expect about 0.25g/watt of CFL light if you use plant training and don’t run into major plant problems. This is counting CFL true watts, not any type of “equivalent” watts.

How many CFL seedlings do I need?

Seedlings need approximately 32 watts per square foot of growing area for LED grow lights and 100 watts per plant for CFLs. They also require the right color temperature to grow and thrive, so choose a temperature range of 3,500 to 6,500 kelvins.

Are CFLs good for growing plants?

Compact fluorescent light bulbs are a good source of supplemental light for growing plants in low-light conditions or for providing extra light to increase the day length and encourage blooming.

How close can CFL be to plant?

4-6 inches awayTry to keep your lights anywhere from 4-6 inches away from the surface of your plants.

Can I use CFL for flowering?

Best CFL Bulbs For Flowering Growth. 40 Watt individual CFL bulb. 2700K temperature, greatly suited for flowering plants. The Satco Lumens 40WT 2700K bulb is a great option if you want to set up some individual low power bulbs for blooming phase.

How many CFLs do I need for 2 plants?

Mix & Match! Just aim for about 150W of CFLs in Total Per Plant to Start, and stick to relatively smaller size bulbs if you can! If you want them to screw into regular light bulb sockets, use ones with a “medium base”.

Which is better for plants CFL or LED?

LEDs need to be kept much further away from plants than CFLs, which means that CFLs are better suited to short grow spaces without a lot of available height. LED grow lights generally need to be kept 12-18+” away from the tops of plants, while CFLs can be kept just a few inches away.

How many lumens for CFL grow?

Each plant should be covered by around 10,000 lumens per plant or even more. So if a bulb gives off 2,500 lumens, you'd need 4 or more of those bulbs per plant for optimal light coverage.

How far should CFLs be from seedlings?

Basically, if you put your hand where your plants are closest to the light, and the light feels too hot to be comfortable, then the light is too close. If your hand just feels warm, but not hot, then your plants are at the perfect distance. I generally kept my CFL bulbs 2-4″ from the leaves during the whole grow.

Which CFL bulbs are best for growing?

The Best CFL Grow Light for YouApollo Horticulture 60 Watt CFL Compact Fluorescent Grow Light Bulb for Plant Growing – 6500K.Hydroponic Full Spectrum CFL Grow Light Bulb 60 Watt Bulb 5500K H60.Philips 433557 100-Watt Equivalent, Bright White (6500K) 23 Watt Spiral CFL Light Bulb, 4-Pack.More items...•

How close can a CFL bulb be to a plant?

CFL bulbs can generally hang fairly close to your plants, but this does depend on their wattage. A 20 to 30 watt bulb can hang within a few inches. You can always use the “back of the hand test” to see if your bulb is too close. Hold you hand where the plant is, with the back of your hand facing the bulb.

How many watts does a CFL use?

For example, a CFL that is equivalent to a 100 watt incandescent bulb will actually use around 23 to 28 watts of power.

What is the temperature of white bulbs?

There are cool white bulbs that have a color temperature around 6000K to 7000K (‘K’ stands for Kelvin), warm white bulbs with a color temperature around 2000K to 3000K, and neutral bulbs with a color temperature in the middle, around 3500K to 5500K.

Why hang a plant so close to pants?

That is why you hang them so close to the pants. With fewer powerful bulbs, you have to hang them further away and are more likely to get shadows. More bulbs that are less powerful allow you to hang them close and to completely bathe your plant in light.

How to keep weeds from getting burned?

Hold you hand where the plant is, with the back of your hand facing the bulb. Keep it there for 30 seconds. If your hand gets too hot, then it will also be too hot for the plant. Back the bulb off a bit. Weed plants grow rapidly, so keep a close watch to make sure they don’t grow into the bulbs and get burned.

How to force a plant to grow?

That way they are more flat on top and can grow multiple large buds. You can get them to grow this way by bending and tying down various stems to get them to grow outward.

How many watts per square foot for CFL?

The easiest to use is the square foot. When using CFL bulbs to grow a plant with a high light requirement (like cannabis), you want a minimum of 60 watts per square foot.

What CFL color is best for cannabis?

Color Spectrum – Not That Important. There are bulbs with different CFL color spectrums and it’s generally recommended to get “daylight” (6500k) CFLs for the cannabis vegetative and “soft white” (2700k) CFLs for the flowering stage.

How to increase cannabis yields under CFLs?

Besides basic plant care, the best way you can increase cannabis yields under CFLs in the vegetative stage is to train your plants to grow short and wide so they’re best able to best take advantage of the CFL’s great light spectrum in the flowering stage . Plant training will dramatically increase your yields!

How to set up CFLs?

A common method for setting up CFLs is to use a 2-way or 4-way splitter plus a light socket extender to fit more bulbs into a clamp light socket (without the extender, they might not all fit inside the reflector). Left – a clamp light socket. Right – two CFLs on a 2-way splitter on an extender.

What is the vegetative stage of cannabis?

The vegetative stage starts as soon as your young cannabis plant starts growing real leaves. At this point, your plant is only making stems and leaves. It grows just like most houseplants at this stage, so your main job is just to provide water, light and nutrients.

How to tell if a CFL is too close to a plant?

A good way to check if a CFL is too close to the plant is to use the “hand test.”. Put your hand where the plant is and leave it there for 30 seconds.

How to train a plant to grow flat under a CFL?

If you start early, you can train your plant to grow flat and wide under your CFL grow lights with only gentle bending and tying down. Here’s an example from above of LST (bending) plus tying down to keep a plant short: Think about bending any tall stems down and away from the center of the plant.

How to minimize light loss in marijuana grow space?

Use the power of reflection to minimize light loss in your marijuana grow space. Cover your walls with something reflective like flat white latex paint (which has 85-95% reflectivity) and/or utilize reflectors to aim more light where you want.

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Grow Area

Par

Direct Connection of Grow Area and Par

CFLs Usage Is Growing

Set-Up Procedure of How Many CFLs Per Plant

  • Step 1: Growing Design Set-up
    Assuming that all tools and materials are available in your area and you can afford them, you have to take into consideration the specifications of your grow area; the plant areais one of them. You have to classify if the plant produces flowers, vegetables, or even both. By doing this, you know …
  • Step 2: Bulb Selection
    The criteria of the selection of bulbs can be the wattage needed and the illumination required. These can be dependent on the type of plant being grown and the pace of the products, be it flowers, fruits, legumes, etc., needed to harvest. With that in mind, research can help you maximi…
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