i just forgot to turn off my 20watt cfl that assists the sides of my plant, 30min to long on 12/12, is it easy to hermie a plant. (it wont happen again... i promis)
You can save yourself a few bucks if your timer is a heavy duty time, if it is just plug a power strip into the timer and plug all your lights into the power strip and you wont have that problem again.