Mosthink LED Plant Grow Light Strips Full Spectrum for Indoor Plants with Auto ON / Off Timer, 48 LEDs / 4 Dimmable Levels, Sunlike Grow Lamp for Hydroponics Succulent, Two Pack

 Mosthink LED Plant Grow Light Strips Full Spectrum for Indoor Plants with Auto ON / Off Timer, 48 LEDs / 4 Dimmable Levels, Sunlike Grow Lamp for Hydroponics Succulent, Two Pack

•     Full spectrum grow light - It emits all the wavelengths from 380nm to 800nm – just like natural sunlight. It has proven effective at promoting indoor growth as it accelerates photosynthesis. SAVE YOUR DARK INDOOR PLANTS with IT ! (50,000 hours lifetime.)
•     Auto Turn On / Off Timer Everyday - This led grow light strips can be set up to turn off after 2H/ 4H/ 8H. After you set up the hours, do not manually turn off the light or cut off the power supply, the light will automatically turn on at the same time the next day- TAKE CARE OF YOUR PLANTS EVERY DAY
•     Bright Grow Light with 4 Adjustable Brightness Levels - 25%, 50%, 75%, 100% - to meet each plant's lighting requirements at different stages .2x 7.5W & 48 LED chips, just put out enough luminosity for all stage of plant growth without worrying about burning your plant
•     Easy & Flexible Installation -The grow light bar pack comes with screws and a double-sided tape (pls cut into 2 pieces when applied). Compact design fits for various fixtures and surfaces. The power cord is 78 inches long for easy using in office,indoor,plant shelf,greenhouse etc
•     Safe for Indoor Plants & Wide Application - Sunlike growing lamp safe and healthy for your plants growing with FCC, CE, ROHS PSE Certified! The grow lamp is convenient for a number of potted landscape and indoor garden plants, such as Succulents, Flower, Seeds, Basil, Rosemary, Daffodils, Plumeria, Aloe, Orchids, Thyme, Cucumbers, Tomatoes, Peppers etc

Visually and biologically effective lighting for indoor plants

The integration of plants in workspaces and rooms requires a special lighting approach
What are the challenges involved in making appropriate lighting for ornamental plants indoors? Dr. Karolina Zielinska, with the collaboration of Julia Hartmann and Carla Sigillo, raises in her work LED Light Sources and Their Complex Set-Up for Visually and Biologically Effective Illumination for Ornamental Indoor , the essential points around the subject through a practical case based on the analysis of the existing bibliography, and of photographic evaluations of plants under different sources of LED light, in which properties such as correlated color temperature (TCC), color rendering index (CRI) are measured , color spectral distribution (DEC), maximum wavelength of light (λP), among others.

Karolina M. Zielinska Dabkowska is a RIBA accredited architect and award-winning lighting designer. She is an assistant professor at the Faculty of Architecture, Gdansk Technical University in Poland; and co-founder of GUT LightLab, where she leads a research team focused on various aspects of light and lighting in the construction of environments. Karolina actively participates in the work of international organizations, such as the International Association of Lighting Designers (IALD), Illuminating Engineering Society (IES), and the International Dark-Sky Association(IDA), where it offers a guide towards a better practice of night lighting in public spaces and natural environments. Likewise, he has participated in numerous international conferences and has collaborated in national and international publications.

As a background to this analysis, Karolina Zielinska explains the integration of plants in work spaces and bedrooms, a practice that has been increasing in recent decades -called biophilia-, and has led to a growing interest on the part of researchers and professionals in different areas of architecture, with which multiple interpretations arise today about its meaning, as well as its applications in the generation of green and healthier environments for the user.



In accordance with this trend, argues the Polish academic, a philosophy of green architecture must involve an approach that can minimize negative environmental impacts - this through the correct application of sustainable energy sources, materials, and materials. construction processes of these spaces.

In this sense, there are numerous certification programs and standards that have been established to measure and verify that certain criteria for responsible construction and design are met; but there is still a lag in terms of the regulation of requirements for natural or artificial lighting for indoor plants -the latter are even non-existent-, a situation that contrasts with the interest that has been given to the practice of lighting in cases of commercial cultivation of plants for consumption (fruits and vegetables).

Resolving this deficiency and providing lighting that is appropriate for indoor plants requires taking into account factors such as the impact of wavelengths in the light spectrum on processes such as photosynthesis, photomorphogenesis and photoperiod, the study states. As is known, both natural light and artificial light affect the life cycle of plants; but, while the need for UV light from plants is an accepted fact, its use indoors is not frequent due to the negative effects it can cause in man, such as premature aging, burns, among others.

Despite the widespread use of specific lighting in horticulture - with the purpose of stimulating plant growth times - recent studies have confirmed that wavelengths in the green light range (497-570 nm) can penetrate more deeply in the leaves, and consequently favor the photosynthesis process.

Therefore, an optimal visual perception of decorative indoor plants should simulate natural lighting conditions; But, also considering that the effect of the lighting quality seems to be different for each species (especially during the growth phases), in the case of decorative indoor plants, if they grew only under artificial lighting conditions, they would be compromised. their appearance and biological functions, so it would be necessary to consider the evolutionary arrangement of certain plants and replicate as far as possible the appropriate characteristics within the spectrum of solar radiation through LED technology.

So artificial light or natural light for indoor ornamental plants?

As Dr. Zielinska maintains in her work, natural lighting is the most favorable for plant growth, as it is a source that provides both energy and the ideal spectral range; Unfortunately, illuminating an interior space with this type of light turns out to be a challenge due to several factors, since to the extent that plants complement an interior space, it is also necessary to balance lighting and the use of space to optimize the positive impact of light on plants and users.

The light distribution, direction, and vertical and horizontal lighting levels have a significant influence on the way architecture is perceived by humans, so the introduction of sustainable green architecture designs can become especially beneficial in design solutions.

In addition to this, most LED devices illuminate without generating heat and this results in a benefit for both plants and humans, but both respond differently to intensity, or light energy.

Based on these notions, the researcher seeks to emphasize the imperative of finding a formula that establishes the appropriate levels for both species, but also to understand that units such as lux or lumens cannot be used in the first place to measure intensity. of lighting systems for plants, because the values ​​vary and depend on the spectrum of the luminaire, because in interior spaces, to stimulate the natural processes of a plant, the flux density of photosynthetic photons must be measured, which it is normally between 30 and 100 times higher than that required by humans, and it is also necessary to implement light sources that emit the correct wavelength.

On the other hand, for humans, factors such as visibility, visual performance and comfort must be considered, which are categorized based on visual function and use of space. These levels are determined from the perception of the brightness of visible white light, to increase the growth of plants in indoor environments it is necessary to first evaluate the intensity of light using appropriate metrics and meters, and only then to alternate it according to specific needs.

Despite the technical challenges, LED lighting is established as the preferred solution for lighting interiors, since when combined with an appropriate control system it offers enough flexibility to regulate the spectral composition, as well as to select an emission in the peaks of wave range more suitable for the correct development of ornamental plants.

As the academic concludes in her article LED Light Sources and Their Complex Set-Up for Visually and Biologically Effective Illumination for Ornamental Indoor,  published on the academic portal Sustainability.  It is then that, from this type of research work, the need for professional practice and a guide in the implementation and development of lighting sources for indoor plants can be based, and in this way contribute to the search for improvements. in the area of ​​green architecture and biophilic design.

Plant Grow Light, VOGEK LED Growing Light Full Spectrum for Indoor Plants, Plant Growing Lamps for Seedlings, 3 Switch Modes 10 Brightness Settings (Black)

 Plant Grow Light, VOGEK LED Growing Light Full Spectrum for Indoor Plants, Plant Growing Lamps for Seedlings, 3 Switch Modes 10 Brightness Settings (Black)

•  Grow light can be timed to 3, 6, 12 hours as the plant needs, bringing enough but suitable brightness to your plant. With auto on/off function. Plant light will be restarted automatically the next day without manual operation.
• LED growing lamp can provide 10 brightness level. You also can choose one, two or three lamps on.
• Grow light has a strong desk clip, and 3 bendable gooseneck between the clip and the lights which you can move the light to the position you need.
• Vogek Grow light can offer full spectrum. The plant bulbs are replaceable, so you can replace new bulb instead of buying a new light when the life time of bulb is end.
• Our plant growing light is made of 144LED beads, which can provide strongand uniform intensity of light to plants. This Grow lamp has more larger lighting area.

What is the best artificial light for plants?

We know that for good plant health and growth, light is necessary, especially sunlight. But we can have a series of alternatives to sunlight for indoor cultivation that allows us considerable energy savings, such as LED lighting for plant growth.

Depending on three fundamental factors, we will see what type of artificial light is good for plant growth. These factors are as follows:

• Light color
• Hours of light
• Amount of light we supply to plants

Light color

Here we will see the  sum of colors  that make up the light that reaches the plant. Within electromagnetic radiation, visible light is the part of electromagnetic radiation that we can see. The color of light depends on its  wavelength (or frequency) , normally measured in nanometers ( nm , one millionth of a meter). Specifically, visible light or the visible spectrum (what the human eye can perceive) is composed of radiation ranging from  380 nm  (blue) to about  740 nm  (red). They are very approximate data since it depends on the perception of each person. Beyond the blue we have the  ultraviolet  (with a shorter wavelength) and on the other side we have the  infrared (with longer wavelength).

If we divide this spectrum of colors into fragments of interest to plants, we have a blue one  , a green one (a color that plants do not absorb and for that reason we see them as green), a red one, which includes the called far red.

Light emissions (for example from the sun) are composed of photons (which have some of the properties of a wave and some of a particle) of different wavelengths (colors). For example, sunlight is a combination of certain wavelengths, giving  white light . In addition, the sun gives other wavelengths that we do not see, such as infrared (heat) or ultraviolet, which are outside the visible spectrum.

Color Blue (between 400 and 500 nm):

the blue color is responsible for  vegetative growth  (which occurs after germinating and until flowering). When we give a plant only blue light, it grows shorter and has a darker color.

Red / Far Red (600-700 nm):

Plants interpret these colors as the  ratio  of one to another. This relationship influences the  elongation of the stem , especially in direct light crops. Plants reflect far red much more than red. A consequence of this is that when there are many plants together, the amount of far red increases (the red / far red ratio decreases) and this causes the plants to lengthen their stems (for example, to capture the light better since there is competition) .

Blue and red:

This combination favors flowering.

Choosing good lighting (artificial or solar) is important to have the best results.

Number of hours of light or Photoperiod

The  photoperiod  is the number of hours of continuous light that a plant receives in a 24-hour period. In the case of being in the field, the photoperiod  will last the same as the hours of sunlight , as is logical. In addition, it must be taken into account that the photoperiod varies depending on the season and as we have seen before it can affect the flowering of some plants.

Short-day plants   are those that bloom especially when the day is shorter than a certain amount. And on the contrary, those with  long days  are those that flower only or more easily when the day is longer than certain hours. We could say that this number of hours is  around 12 , although it varies by species. Finally we have  neutral plants  in terms of day, whose flowering does not depend on the photoperiod. Apart from flowering, it can affect branching, growth, and other aspects of the plant.

Amount of light

By quantity we mean the  number of photons  that a surface receives and photosynthesis can take place. We can refer to the amount at a certain moment (light intensity) or all the light it receives during a day.

What kind of light do I need?

The first thing to consider would be the type of plant you have, if you have some sunlight or no sunlight. They are the different situations that we can find. In each of them the differences will be the power of light that we need.

We have seen that plants need blue light and red light, depending on how much blue and red light we will favor the growth of the plant as well as its flowering. The redder the more flowering.

With LED lighting we can get "pure" colors from a light source since we can give blue light and red light that the plant needs without providing anything more than what is necessary for growth and flowering. This will save on energy costs, for example, to illuminate with green if the plant does not absorb it.

In this diagram we can see the light distribution of a led luminaire for plant growth, ideal for indoor cultivation

EZORKAS 9 Dimmable Levels Grow Light with 3 Modes Timing Function for Indoor Plants

 EZORKAS 9 Dimmable Levels Grow Light with 3 Modes Timing Function for Indoor Plants

•  Auto turn on and off timming function
• Red and blue led combination
• 9 dimmable modes
• 3 cycle timing modes
• Suitable for indoor potted plants or indoor gardens

What type of lighting to use in indoor growing

We review the different lighting systems for indoor crops, their advantages and disadvantages, so that each grower chooses what best suits their needs.

Cannabis needs sunlight and the passing of the seasons. This way you know when to stop growing and start flowering, as the days get longer and the daylight hours increase. However, for so many plants around the world, the sun may well not exist. It is as unknown to them as the sea could be to a monk high in the Himalayas (we assume that this monk never went on vacation). It is about the millions of indoor crops that supplant the sun by lamps of different types that give plants the energy they need, and determine their cycles. There are several types of lighting systems, each with its own characteristics and suitable for different types of crops.

In order to make a good choice, you first need to know what is the appropriate light spectrum for cannabis. To reflect what happens in nature, marijuana plants basically need blue light during growth and red light during flowering. The green spectrum does not affect them, so if it is necessary to use a light in the crop without altering the cycle, a lamp of this color is suitable.

Another very important factor is heat. The different types of lamps emit more or less temperature, which must be taken into account. Although the more watts, the more production, this has a limit. More is not always better, especially in tight spaces or naturally hot climates. The most commonly used powers are 400W and 600W with their ballasts.

Lighting systems for indoor growing

Each lighting system has its pros and cons, and even its functions. Different types can be combined, or choose an integrated system. Let's see the different options:

Fluorescent tubes and CFL

In the early stages of the plant, it needs less light output. For this reason, fluorescent tubes or CFL (Compact fluorescent light) energy-saving lamps are ideal for germinating seeds or rooting cuttings thanks to their blue light spectrum and low consumption. They are inexpensive and easy to use. CFLs also come with a built-in ballast. In terms of power, fluorescents range from 18 to 55W per tube, and CFLs are 100, 125, 200 and 250W. Due to this low wattage, a good number of bulbs are required for efficient lighting. There are CFL bulbs in the red spectrum, which can be used for flowering, but may not be the best option.

HID bulbs: sodium (HPS) and metal halide (HM) lamps.

Both sodium (HPS) and metal halide (HM) lamps are types of HID (High Intensity Discharge) bulb. In general, these are two types of complementary lighting, since HM are more appropriate for growth (due to their blue spectrum), and HPS for flowering (because they are rich in red). Both usually use the same ballast, but for this it must be taken into account that both are of the same watts. The most common is that 250W, 400W and 600W are achieved.

HPSs are known for their great performance, but they generate a lot of heat, so it may be necessary to install a ventilation system. In addition, they can result in high energy costs (with its consequent electricity bill). All HIDs degrade over time. HMs do it faster than HPS, but both require replacement after a few crops. There are also mixed versions, which are HPS lamps with dual spectrum, that is, for growth and flowering, such as the Dual Spectrum from Lumatek or the Son-T Pia Green Power from Phillips.

Led lamps

LED bulbs are rapidly gaining ground, partly thanks to their low power consumption and the fact that they produce little heat. Although the initial investment is much higher, they allow great energy savings over time, in addition to having a longer duration. You can get panels of different power and different spectrum, to configure them according to the phases of the plant. There are even LEDs that include infrared and UVB spectra, which helps in the generation of trichomes. However, it is recommended to use these spectra with caution due to potential health risks. Another thing to keep in mind is that the fact that they don't generate as much heat can be good for summer crops, but it can be a problem during winter,