What LED light is best for growing plants✿ We all know that Light is a critical component in growing plants which related to plant’s quality and quantity. It is one of the most import factors for plants growing. But many growers don’t know what to look for when choosing LED grow lights, or why their plants need a different type of grow lights. In my article below, I will cover how to choose grow lights for your plants like Lettuce, Strawberry and Cannabis as an example.
✿ Different plants need different light duration, for the plants which produce fruits will need more light to grow. For example, your cannabis and Strawberry need more light than lettuce to grow, and you need give at least 12-15 hours of light per day to flower and produce fruit. Lettuce is a low light plant and 10 hours light duration is enough light for Lettuce. Longer light duration will make lettuce to go into the flowering phase and turn bitter.
✿ Different plants need different light spectrum.
✿ Lettuce does not require much light, and Blue light is the most important spectrum for vegetation, more information can refer to our blog: how does light spectrum affect growth.
✿ For this reason, most growers go for fluorescent lighting or T8 type growing light which is the most economic grow lights to match for the lettuce plant.
✿ Strawberry is a kind of light-loving plant. In the whole grow stages of Strawberry, the full spectrum from 400-700nm of which blue light and red light is the most important spectrum. Blue Light is helpful for increasing the growth of Strawberry leaves and Red light is helpful for increasing the formation of flower buds and growing fruits. Therefor, it is recommended to choose a grow light with larger proportion of blue light and red light. There are many different power ranges of full spectrum grow lights in the market from 10W to 1000W. But not all of them are good choice, because the light saturation point of strawberry is low which means the photosynthesis rate no longer increases even if increasing the light intensity. In order to save the invest cost, in Generally, you can use a 30W full spectrum grow lights with high Blue and red light to cover around 1 square foot indoor growing place.
✿ Cannabis need full spectrum (wavelength range from 400-700nm) to grow well. This specific spectral wavelength range is also what activates PAR (photosynthetically active radiation), which is a biochemical process in plants that is necessary for growth. As we have developed a better understanding over time of how light affects plant growth and the importance of PAR, we have learned that plants utilize different colors or wavelengths of light at different growing stage. Investing a growing light for cannabis indoor grow is one of the most expensive growing equipment. In order to reach the Max economic response rate, Select a smart grow lights which can adjustable the spectrum in different growing stages are increasingly preferred by growers.