Light is one of the essential elements for plant health and growth. But in indoor environments, especially in northern regions, indoor growing plants often suffer from a problem not encountered in nature: insufficient light. Despite favorable windows, most plants still have insufficient light. No plants in our house will be exposed to too much light! That’s why if we want indoor plants to thrive, we usually need artificial lighting to solve, and that’s LED grow lights.
The light source of LED plant light is mainly composed of red and blue light sources. The main wavelengths that have a great influence on plants are: blue light wavelengths of 450-460nm and 460-470nm, and red light wavelengths of 620-630nm and 640-660nm. Red light can promote the metabolism of stem segments, which has a great effect on the flowering and fruiting of plants; blue light mainly prevents plants from growing excessively, promotes the formation of plant dry matter, and has a significant effect on the growth of rhizomes.
Generally speaking, the spectral range that plant chlorophyll can directly absorb is the red light with a wavelength of 640~660nm and the blue light with a wavelength of 430~450nm. There are also lutein and carotene, carotenoids, anthocyanins, etc. in plants that can absorb photosynthesis. The composition of the LED grow light can meet the light required for indoor planting at any time after using the LED plant light.
As a supplementary lighting fixture, LED grow lights can enhance the light at any time of the day and prolong the effective lighting time. Whether at dusk or at night, it can effectively extend and scientifically control the light required by plants. In greenhouses and plant laboratories, it can completely replace natural light, promote the growth of plants, and completely solve the situation of watching the sky in the seedling stage. It is possible to arrange the time reasonably according to the delivery date of the seedlings.
First, The three advantages of indoor planting of LED plant lights: 1. To achieve an integrated plant production with high efficiency, low heat load and compact growth space, so that the growth cycle of plants can be reduced while the yield can be increased; 2. Pest control and insect repellent , The wavelength of LED grow lights is only suitable for the growth of plants. Other animals and pests are not comfortable when exposed to this wavelength for a long time, so pests do not dare to approach, and can protect the healthy growth of plants while supplementing the light. 3. LED grow lights can be used in any indoor planting and other places that need supplementary light without restrictions, and due to the design and installation of LED grow lights, it can maximize the use of space and improve the uniformity of light.
Second, the indoor fill light of LED plant lights should also pay attention to the following points: 1. Installation height. The installation of LED plant fill light must be scientific in order to effectively improve the light utilization rate of the plant light. In order to ensure the fill light intensity of the plant, the plant fill light should be placed directly above the plant as much as possible, and the distance should be set according to the power of the plant light. Generally, the closer the distance between the plant lamp and the plant, the higher the utilization rate of light. Use LED plant lights to fill in the light, because the heat energy of the LED is very small, it will not burn the plants, and it can be irradiated at a close distance, and the closest distance can be 10 cm. Generally, for plant lights with power less than 8W, the irradiation distance is about 0.5 meters, and for plant lights with power greater than 8W, the irradiation distance can be between 0.7-1 meters. 2, fill light time. Depending on the growth period of the plant and the growth environment, the time used to fill in the light is different. Indoors where the light is not strong but can shine into the sun astigmatism, the fill light time should be no less than 5 hours; the balcony with less than 4 hours of light (only half-day light in the morning or afternoon), the fill light time should be no less than 4 hours ; Shade and indoor without sunlight should be no less than 10 hours of fill light. Generally, the supplementary light time of the plant growth period is longer, and the dormancy period is less. Cloudy, rainy and foggy days should be no less than 10 hours of fill light. Another point to note is that because plants mostly perform photosynthesis during the day and grow at night, supplementary light is generally not needed at night. 3. Improve the utilization of light. Wall Latex Paint: If you choose to use latex paint, first the wall area should be very smooth. Otherwise the reflectivity will be significantly reduced. Choose pure white instead of bright white for latex paint, be sure to paint the surface correctly. Latex paint is a good and inexpensive solution, with a reflectivity of over 85%, which makes it an efficient option. Plastic Film: Plastic film is a polymer that is black on one side and white on the other. They can reflect nearly 95% of lighting, but be aware that plastic films generate a lot of heat, use an HVAC system to remove that heat. 4, evenly distributed installation. Measure the floor area, multiply the length by the width, and know the area of the planting area, you can make the right choice as to how much power per square meter is provided, that is, how many LED grow lights are installed per square meter, so that they can be evenly distributed With each light, the outer edge will receive strong light, making the light more uniform and more effective for the growth of plants. 5. Humidity and temperature. Photosynthesis and transpiration rates are directly affected by temperature, humidity, and airflow. Find the optimum temperature and humidity for your plants between 75℉-85℉ and 50% – 70% humidity, with ample airflow to replenish CO2.
Nowadays, the technology of LED plant lights is getting more and more perfect, and its powerful practical functions and advantages are widely used and loved in indoor planting. The development trend of LED plant lights in the field of indoor planting will be unstoppable.
