what color? How many watts does a square plant fit?
White light, of course, close to daylight. The wattage depends on the length of the exposure. Short time can use more than 10 watts, long time irradiation, available 3 watts to 5 watts.
LED white light approaching daylight? The spectrum is completely different. OK, don't mislead.
The plant lamp consists of red light and blue light, just violet light.
The absorption spectrum of chlorophyll in the blue violet region is much wider than that in the red light region, and the absorption peak is much higher. Carotenoids absorb only blue violet without absorbing red light. Photosynthetic pigments are carotenoid and chlorophyll higher plants absorb blue violet more than absorb red light, so better with blue and purple. A square metre of about 15 watts, there are monopoly online, you can adjust the proportion of red and blue as required, according to the number of square meters to choose a different power.
