1. As the most common case is sunshine but separated by glass, then you only need UVB. I must say that UVB10.0 can not reach the intensity of origin, but at the same time our overall light intensity can not reach the origin, combined with water control can be very good. It's just slower growth.
2. Half-day sunshine, not separated from the glass, then you need to increase the intensity of the whole spectrum, red and blue light + UVB + UVA, or rare earth Lamp + UVB, to make up for half-day no direct sunshine.
3. There is no light at all, or long-term rain, you need high power, full spectrum, indoor scattered light red light can be a small amount of UVA, low-wavelength light needs to be strengthened, the proportion of red light can be added to promote flowers, but too strong flowers will fade early.
4. Strong artificial intervention, using artificial means to control light, combined with ventilation, watering and other means, to a certain extent, can resist high temperature dormancy, planting apricot can achieve semi-dormancy, planting Polyporus of Rolidae does not sleep at all. In fact, most winter-type plants can keep growing slowly in summer, except for several plants in particularly extreme environments. Enhanced illumination is more meaningful for summer-type plants and can resist the problem of slower growth at lower temperatures in winter. In fact, the transpiration of CAM plants is not obvious. Temperature can be counteracted by illumination. If the temperature is increased properly, it will grow all year round.
Nowadays, whether LED or rare earth lamp, almost all of them are W/40LM (special spectrum) which is necessary to achieve 200 W square meter effect. With the energy consumption of UVB, it is almost 240 watts, not more than 400 watts, which will shrink plants. When planting desert plants, UVB needs to be more than 50, alpine plants need to be more than 100, and the dormancy period can be reduced. In the period of vigorous growth, increase appropriately, do not exceed 200 ~! Easy to burn.