dave i think it will be ok to have a combination of both warm and cool light although you want more of the cool white while there in veg and more of the warm for flowering,your lights should be about perfect for them,well done with the clones bro,the 4 i took are doing great although 1 of them is struggling a little and im pretty sure its because that 1 i let the girlfriend do it and she touched the freshly cut end before putting it in the cloning gel which i about bit her head off for doing it lol,happy growin m8