HH... as I said in the other led thread... the link you posted is to 'one more time' .. another 2 spectrum led piece of junk....

Yes .. 2 spectrums will grow plants... plants grow under cfl's .. soo they do adapt.

The pic by my nic shows my seedling unit on its side... and for a seedling unit I use more than 2 spectrums... why ?? Because plants want and need them for optimum growth !!!!