It is Hortilux, Is it cool to just switch them or will it send my ladies into shock? BTW i have them on 24/0 now because i was told it was better for vegging. Thanks for your replys. They are MUCH appreciated. I love this website cus people acctually take time out of there lives to answer your questions, when they really dont have to. Maybe im just stoned , But i think thats cool.