When you buy LED grow lights, you will hear that LED plant growth lights have the advantages of energy saving, environmental protection, long life and high efficiency. However, some performances are exaggerated. The three common mistakes when purchasing are as follows:
(1) The life of the LED grow light is equal to the working time of the LED grow light
Most LED lighting manufacturers can reach the life of LED grow lights more than 50,000 hours. This life is the theoretical life that the lamp can use. The factors of light decay and technology replacement are not explained.
The light decay of LED grow lights includes many aspects. On the one hand, it is the lamp chip itself, the brightness of any lighting lamp will decrease after a long time working. Including wires, panels, lenses, covers, etc., they will age after a long period of time. Even if a new LED chip is replaced, it is impossible to achieve the best plant lighting effect as before. Talking about the technical update of lights, who knows what will happen in ten years? New products are launched every year, and the performance will definitely be better than before. Should I buy a new one? Maybe one day LED grow lights will be replaced by other emerging light sources of the next generation. Should you buy a new one or not?
(2) The higher the power, the greater the brightness, the better the effect
Power refers to the power consumption of the LED grow light in a certain period of time, and has no direct relationship with the light supplement effect of the LED grow light. If you illuminate a small pot of aloe with the ordinary LED grow light produced by the manufacturer, the same luminous area and illumination angle, the 24w LED grow light hanging at a height of 50cm can meet their growth needs. The key factors we should pay attention to are the workmanship, Quality and effect.
Brightness is the definition of light perception by the human eye. The perception of light by plants is calculated based on the lux lux. It is not that the brighter the human eye feels, the better the effect of plant LED lights. We'd better choose different LED chip ratios according to different stages of plant growth to achieve the best growth of plants at different stages.
(3) LED grow light is a cold light source, it will not burn plants
LED grow lights are cold light sources, compared to other plant growth lights. All products related to electricity generate heat. At present, there is no photoelectric conversion source that can achieve 100% photoelectric conversion, and more or less of the electric energy will be converted into heat energy, and the same is true for LED grow lights.
Low-power LED plant growth lights can illuminate plants at a close distance, especially during the germination stage. If the LED grow light is attached to the plant, the heat radiated by the LED grow light to the plant for a long time will also burn the plant. Needless to say, the high-power LED grow light, look at the cooling fan behind the high-power LED grow light.
Then what we need to pay attention to is
cooling problem
If you are using it in large space areas such as greenhouses and industrial parks, the heat dissipation of LED grow lights is naturally not a problem. However, the home space is limited. If you do not pay attention to the air circulation, the temperature of the space will continue to rise. The heat dissipation of the LED grow light will be a problem, which will affect the performance and service life. Therefore, you can choose air conditioning, fan heat dissipation or keep the air circulating, etc. Method.
Lighting problem
The home space is limited, the installation is too inconvenient or the installation location is unreasonable. Will affect the growth of plants, because the installation angle is not correct or unreasonable, so that the light distribution of LED grow lights is uneven, then the plant will grow poorly if the light received is different. To solve this situation, it is best to choose a foldable or sliding LED grow light, which can be well adapted to the size of the space and is easy to install.
Security Question
The blue light of LED grow lights is the same as other electronic products, which is harmful to human eyes. This aspect should be paid attention to. Therefore, it is necessary to wear anti-blue goggles to protect the eyes.
The harm of blue light:
1. Blue light will aggravate the disease in the macular area of the retina;
2. Blue light can cause damage to the fundus after cataract surgery;
3. Blue light can cause blurred vision and cause visual fatigue;
4. Blue light can cause glare;
5. Blue light can inhibit the secretion of melatonin and disturb sleep.
Fill light distance
LED grow lights will generate a certain amount of heat. If they get too close, they will burn the plants and cause some damage to the plants. If the distance between the LED grow light and the plant is too far, it will greatly reduce the light utilization rate, thereby weakening the light supplement effect. If the heat of LED grow lights is less than other grow lights, but there will be a certain amount of heat. If the distance is too far, it will also affect the effect of fill light.
Fill light time
1. Determined according to the degree of light-loving of the plant
Not to mention that LED grow lights do not rest, almost all living things need to rest, so it is impossible to use LED grow lights to fill the plants with light, which will have a bad effect on the plants. Studies and experiments have proved that the best time for plants to add light is controlled at about 12 hours, and it is necessary to leave enough time for plants to rest for 4-6 hours.
For light-loving plants, it is necessary to use LED growth lights to supplement light for plants at 6:00-10:00 and 17:00-00:00, because 10:00--17:00 is the sunlight that meets their growth needs Time period, so it takes about 11 hours for the plants to fill in the light.
For plants that do not like light, they can meet their growth needs when there is sunlight. The time for supplementing light with LED grow lights only needs to be set according to the local sunrise and sunset time, and the light supplement time should avoid plant rest time as much as possible.
2. Set according to the planting environment
The planting environment mentioned here includes the difference between the north and the south, the difference between spring, summer, autumn and winter, and the difference between indoor and outdoor sunlight. Regional and seasonal differences can be set according to the light law, the closer to the equator, the stronger it is to set the lighting time with LED grow lights. Strong in summer and weak in winter, set the lighting time with LED grow lights according to local conditions. There is a big difference in the light that can be received for indoor and outdoor planting. It takes 16-18 hours to fill up the light with LED grow lights for the whole time. Outdoor plants use LED grow lights to fill up the light according to the difference in the illuminance of sunlight.
When we buy LED grow lights, we first need to determine a LED grow light that is really suitable for our plant growth from the perspective of plant growth needs. When using lamps, pay attention to the lighting distance, the distance between the lamps, and the working hours of the lamps.
