How to choose LED Supplement Grow Light?
1. How to choose the type of grow lights?
As for the current development trend of growth light, led, as a new light source, has the characteristics of energy conservation and environmental protection, long service life and short response time. It has obvious advantages in the field of agricultural fill light. Compared with the traditional light source, LED Grow Light can regulate the spectrum and radiation intensity according to the demand; Secondly, LED is a cold light source, and close irradiation will not cause burns to crops. Is it OK to choose led supplement grow light directly? The answer is not necessarily. The geographical location and climatic conditions of the building owner shall be considered. If it is in the north and it is cold in winter, it is recommended to mix LED lamp and high-pressure sodium lamp to keep the greenhouse at a certain temperature. If you are in the warmer south, you can use LED fill light alone.
2. Crop type is the key factor affecting growth lights selection
In 2017, quantities and units of electrical radiation for plants released by the American Society of agriculture and bioengineering expanded the spectral range of plants to 280nm-800nm, which is more complex. In short, the wavelength bands of light required are different due to different plant species.
3. Influence of photoperiod
Photoperiod refers to the perception and response of organisms to the alternating length of light period and dark period in the circadian cycle. In short, some plants have to go through a certain photoperiod to form flower buds, which also reflects the adaptation of plants in different geographical locations to the climate and environment, so as to ensure that plants can complete the life processes of spring hair, summer flower, autumn fruit and winter storage in appropriate seasons.