Grow lights are expensive. Regular light bulbs aren’t .
This could be an excellent thanks to save money…if regular bulbs work for growing plants.
People often assume you would like expensive grow lights to form up for the shortage of natural light, but they’re wrong.
You can actually use regular light bulbs to grow plants indoors.
But do you have to use regular bulbs?
In some cases, yes; in some, no.
And when it involves LEDs, you would like to take care . Some regular LED lights can work just fine as grow lights, but many aren’t suitable—see the LED section below for more.
Before we get into that, you’d possibly be asking yourself how you would know if your plants aren’t getting enough regular light and whether or not they need artificial light to assist them
out.
Believe it or not, your plants will tell you. Not literally, of course, but they’re going to show you.
If your plants aren’t getting enough regular sunlight, they’re going to grow tall with weak stems and therefore the leaves are going to be lighter in color. New leaves will often be larger in
size and therefore the leaves on the inner a part of the plant may start to show yellow.
If your plants show these symptoms, you’re getting to want to urge them some additional light.
The most successful light bulbs contain both blue and red wavelengths of sunshine . The blue is particularly useful for foliage growth and therefore the red is for flowering and fruiting.
Types Of Light Bulbs Available
If you only need light for your regular houseplants, any lamp or light fixture will do.
Which one is best for you, depends on your needs (see subsequent section).
You do want to form sure the sunshine you select has the right color temperature (explanation below within the fluorescent light section), as this drastically improves performance.
The most popular sorts of light bulbs to use as grow lights are incandescent or fluorescent bulbs, but you’ll also use LED lights, halogen lights and traditional horticultural grow lights,
like high-pressure sodium bulbs (HPS) and metal-halide bulbs (MH). the primary two are fine for little gardens; if you’re got a bigger grow, LED or HPS/MH make the foremost sense.
If you’re thinking of growing plants from seeds, you’d be best off with hanging tube fixtures that you simply can place directly over your plants. There are special kits available that include
the fixture and reflectors.
Do Incandescent Grow Lights Work (i.e. Regular Bulbs)?
Incandescent lights are the quality light bulbs we all have already got in our homes (here are a bunch of examples on Amazon).
They are the most cost effective option, but they’re inefficient.
They use more power to urge an equivalent output and that they give off a considerable amount of warmth . For these reasons, we generally don’t recommend using them for your plants.
Take a glance at the subsequent graphic.
A comparison of incandescent, fluorescent and LED bulbs when used as grow lights for plants. Incandescent bulbs use the foremost power, last the shortest amount of your time and supply the
smallest amount amount of usable output for plants.
If you are doing use incandescent bulbs, confirm you don’t place them too on the brink of the plants.
Use the hand test. Place the rear of your hand where the plant is and wait a moment . If the sunshine becomes too hot for your hand, it’s also too hot for the plant and you would like to
maneuver it further away.
Incandescent bulbs are usually the primary option people consider, because they’re cheap and that we all have already got some lying round the house.
But we always recommend fluorescent bulbs for little first-time growers.
They don’t cost all that far more and that they are tons more efficient: they last longer and use less power, so you really find yourself saving money.
Can Regular Fluorescent Bulbs Be Used As Grow Lights?
Fluorescent lights are the simplest choice because they’re the foremost economical.
They are sold in tubes (like these, which are good for larger indoor gardens) or compact bulbs that enter a daily lamp socket.
These are called CFLs and are best for a couple of plants or as supplemental lighting. they’re the bulbs we’ll discuss from here on (everything we are saying goes for tubes also , though).
Fluorescent lamps stay cool enough that they will be placed on the brink of your plants and that they use much less power per lumen (the amount of sunshine they provide off) than incandescent
bulbs, which saves you on your power bill.
Many folks even have some reception already. That said, you would like to concentrate to the colour temperature of the bulb to make sure the simplest possible performance.
If you don’t mind spending a touch more, you’ll get a specialized fluorescent bulb (like these) made specifically for growing plants.
These have an optimized visible spectrum for plants (see subsequent few paragraphs to assist with choosing the proper color temperature) and that they also are more powerful than regular
fluorescent bulbs.
Regular bulbs work just fine, though, especially if your plants are already getting some natural daylight. They key’s to form sure they need the right color temperature, measured in Kelvins.
How Many Kelvins Should A Bulb Have within the Vegetative Period?
If you’re growing plants that flower or fruit, you’ll need a bulb with more reddish light. you’ll still just use regular bulbs, but you would like to form sure they’re labeled as ‘warm white’
or ‘soft white’ like these. In terms of color temperature, they’re going to be between 2000 K and 3500 K.
Another option is to urge a bulb with a color temperature right within the middle, between 4500 and 5500 K (confusingly, these also are sometimes labeled as ‘daylight’).
These work for all plants, but aren’t quite as efficient as cooler bulbs for growth or warmer bulbs for flowering. we discover a mixture of cold and warm bulbs to figure best.
The main problem with both incandescent and fluorescent bulbs is that they aren’t generally powerful enough to flower quite a few of plants, unless you get plenty of them. Once you get tons of
them, they’re not cost effective, because there are far more efficient lighting options available. this text explains what percentage CFLs you would like per plant.
If you’ve got quite a few of plants, you’d be far better off with high-intensity discharge lights (HID) or LED lights.
Can Any LED Light Be Used As A Grow Light?
LED lights are more energy efficient and emit much lower levels of warmth than other sorts of lighting. But are you able to use any led lights to grow plants?
Generally, yes.
But because LED technology is so customizable, every bulb is different and you would like bulbs that produce the precise mixture of red, blue and other wavelengths preferred by your plants.
White light contains an excellent mix for plants, so white LED bulbs will work to grow. the most issue is one among power. you would like lights that offer you sufficient output to flower
plants and lots of regular bulbs won’t do this .
Due to the shortage of power and therefore the potential for a less-than-ideal spectrum, many general LED lights aren’t as effective for plants as specialized ones.
On the opposite hand, if they supply sufficient output and an honest visible spectrum (like white light), they’re going to work even as well as a specialized grow light, since they’re
basically an equivalent thing.
If you’re unsure and need to be sure you get a light-weight which will both grow and flower plants, your best bet is to urge a horticultural LED grow light that uses COBs. they’re designed to
supply the wavelengths employed by plants within the ideal ratios, making them the simplest bloom LEDsavailable.
In general, you’re more happy purchasing these, as against just general-use LED lights. they’re not cheap, however. That said, there are a couple of quality, inexpensive LED plant lights on
the market.