Grow Lights Artificial Lighting On cloudy and low light days, artificial lighting with grow lights is a must. Give crops at least 8 hours of light per day at night, and the time of day should be fixed. But lack of nighttime rest can also lead to disordered plant growth and reduced yields. Under the fixed environmental conditions such as carbon dioxide, water, nutrients and temperature and humidity, the size of the "photosynthetic light flux density PPFD" between the light saturation point and the light compensation point of a specific plant directly determines the relative growth rate of plants; therefore, an efficient light source PPFD Combination is the key to plant factory productivity. Rhein lighting has developed a new line of led grow light. It is equipped with Samsung LM301B diodes and built-in FORT UL driver. The grow light achieves the efficiency 2.8 μmol/J and higher average PPFD with 1300 μmol/s at 4'x4' flowering coverage.Rhein lighting is a professional m…