What's Daisy Chain? What's Function?
Let's see below pictures to have a more clear idea.
Daisy Chain Function
Space saving and keep grow tent tidy, more convenient and safer in use.
How many? Usually 2-5 lights can be chained in a line,depends on the different modes. Some low wattage grow lights can have 10 max to be chained.
What line used?
The line is the same line of power cable.