Blue photons drive the photosynthetic reaction, although from an energy standpoint, one might consider them less efficient than green or red photons because their high energy isn’t fully utilized; some of the energy is essentially lost compared to photosynthetic photons with a longer (less energetic) wavelength. However, at least a minimal intensity of blue light is needed in sole-source (indoor) lighting applications for normal plant growth. In addition, blue light regulates the opening of stomata, which are the tiny openings on leaves that control both water loss and the uptake of carbon dioxide. Generally, only a low intensity of blue is needed in a light spectrum for fully functional photosynthesis. Therefore, indoor lighting (such as in vertical farming) and greenhouse lighting usually include blue in the spectrum.
Generally, blue light suppresses extension growth; plants grown with blue light are usually shorter and have smaller, thicker and darker green leaves compared to plants grown without blue light (Figure 1). In the production of ornamentals, these attributes can be desirable because in essence, blue light can act as a growth regulator. The utility of blue light as a growth regulator is pronounced with indoor lighting and generally has less or no growth-inhibiting effects in supplemental greenhouse lighting. There are some reports in which extension growth is actually promoted under only blue light, although this response seems to be crop specific.
By providing some additional blue light during the vegging stage, you can give your plants better light for that stage, without having to get a whole new lighting fixture.
These blue LED fixtures are all extremely inexpensive, making them a nice, cheap way to boost plant growth.
HLG 30 UVA Supplement LED bar light is a waterproof plant light that is designed for a 12-hour plant growth cycle. It contains the UVA range between 365nm and 385nm. UVA promotes the overall growth of your plants and is ideal specially for the seedling and sterilization of the plants. It also increases the plants’ resistance to insects, bacteria, and fungus.
This LED plant light is designed to evenly cover a 4x4 or 5x5 space. With the passive cool mechanism of this HLG light combined with the most power-efficient LEDs, this light gets you an amazing yield while lowering your electricity bills.
This lightweight, 24 inches long LED bar light comes with a built-in power supply. The waterproof body makes this light suitable to be used in all environmental conditions.
2.ECO Farm ECOM 30W UV & IR Supplemental Light
The ECO Farm supplemental grow light including ultraviolet (UV) as well as infrared (IR) and far-red waves that help your cannabis plants grow healthier and faster through all the stages.
The bulb does not harm the environment in any way. It has a design of reflecting cups that help to focus the light onto the plants. The lamp is highly efficient and energy-saving as it can provide a light that is three to five times stronger than from incandescent bulbs.
UV grow lights can also produce changes/increases in phenolic compounds, flavonoid pigments, resins and oil production, etc. As plants are exposed to UV light, they produce such compounds to protect themselves, similar to the way you might put sunscreen on so you don’t get sunburn. While these effects are highly desirable for many crops.
The far red frequency will encourage young plants to develop larger leaves and will also affect photoperiodism (Flowering phase) of short day plants. When short day plants are exposed to far red light, it will encourage them to flower. So, many growers will use far red lights like a 730nm LED light bar for a few minutes up to two hours before the lights off phase. Doing this will speed up flowering, meaning you will see flowers develop quicker than without far red light.
3.HQRP New Square 12″ LED Grow Light System
The HQRP New Square 12″ LED Grow Light is a powerful LED that makes a tremendous complimentary light. The lamp has 225 LEDs giving a blue light with a wavelength of 465nm. It consumes a power of only 14 watts, making it very energy efficient.
The grow lamp comes in a thermoplastic body. Its LEDs have a circuitry body that helps to prevent damage on one LED from affecting the whole fixture. The light from the lamp improves the chlorophyll absorption rate by the plants.
It, therefore, promotes the vegetative growth of your plants. Even though the lamp does not produce any UV or IR rays, it has a UV meter that tells you of the amount of UV in your grow room. The meter color changes from light purple to dark purple when there is a high intensity of UV production.
You can, therefore, protect yourself from the harmful effects of UV light. The grow light comes with a hanging kit making it easy to install the light. It comes with a warranty of 200 days.
Summing up
If you want your cannabis plants to grow well without any problems, you need to ensure that they receive a good supply of blue light. When you notice your plants are growing taller but are weak, it is the blue light that is lacking. You can choose one of the above grow lights to add as a supplementary light.
The sunlight, LED lights, and electronic devices are all blue light sources.
Below are some of the detrimental effects of blue light that you might be unaware of till now.
The Hazard To Your Eyes Your cornea and lens are not adapted to filtering the blue light as they filter the UV rays.
This can lead to a gradual vision loss as you age.
As a result, you may experience dry eyes, blurry vision, decreased focus, neck pain, headaches, and back ache.
However, if you use eyeglasses with a blue light filter, you might be able to protect yourself better.
Their purpose is to save eyes from harmful blue light present in digital sources of light, and it is crucial to adapt to their usage in daily life for a healthier outcome.
In the age of digital technology, one can say that blue light blocking glasses have a strong purpose to cater; their availability in myriad shapes and colors is like that much-needed cherry on the cake.
However, it has been observed that people often do not use these glasses very earnestly, so one can say that this sensitization has still to be done.
For fashion, one can already have other glasses, but computer glasses blue light blocking is a necessity, the failure of adapting to which can be pernicious for eyes.
One can say that the blue cut lenses have become a fashion as well as a need because of various factors that are listed out here for a better understanding:
The glasses are so lightweight that they become your skin
The use of mobile and computer screen can have a bad effect on your child's eyes.
To protect their eyes, limit your child's screen time & use #bluerayshield eyeglasses.
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When it comes to the online digital space, those between the ages of sixteen and thirty are spending an average of 3.2 hours a day on their phone or 22.4 hours throughout a seven-day period. For universities, this poses an opportunity for connecting and engaging with students, as it’s no secret that the majority of those on campus will have access to a smartphone, tablet, or portable laptop. This has led many Canadian universities to create education apps and university apps specifically for their student population. These university apps offer a wide range of services, from enrolling in classes and making fee payments for tuition and books to getting access to campus security and timetable scheduling. Without these mobile applications in the form of educational mobility solutions, students would likely still participate in these activities, albeit in a less efficient manner through a mobile web browser or third-party application.
1. The University of Dalhousie Mobile Application.
The Dalhousie mobile application, DalSAFE, takes a different approach in that it provides an integrated safety messaging system that provides security information for safety precautions in the form of campus alerts. Campus alerts provide information about campus closures, major campus hazards, and urgent events that community members, staff, students, and faculty need to know about on a pressing basis. The application has been live for over five years and has eight thousand concurrent subscribers. Features include getting access to push notifications about security updates, quick access to emergency contacts, a BlueLight service which discreetly informs the Dal Security of a serious incident in progress, and access to Dalhousie’s Tiger Patrol (free shuttle service). Beyond this, students get access to campus maps, parking information, a virtual walk-home service (Friend Walk), and information on human rights & equity services as well as healthcare and wellness services. Students who want campus alerts without downloading the application can subscribe via SMS. It is available on IOS, Android, and Blackberry.
2. The University of Toronto Mobile Application.
Students who are attending the University of Toronto have access to the UofT mobile application which provides students, visitors, staff, and faculty members with access to a wide plethora of information. The mobile application combines all sources of information from the University of Toronto’s website and places it at your fingertips. You can get access to the University of Toronto’s following social media platforms Twitter, Instagram, and YouTube as well as their present’s blog, “ULife,” announcements, and important dates. Beyond this, the application does have a course finder which allows you to search through courses and see session information. You may also get access to important events, the education portal, and the library portal. It is available on Android – Google Play.
