Ull Be Fine With The 23 Watts. I Got 3 Cfls On Both My Plants An There Reaching 18 Inches In The Last Month An A Half Of Growing. And Im 3 Days Into Flowering. Ull Be Fine. Btw My Cfls Are 125watts But True Wattage Is 30 Watts. Putting Out 2050 Lumens Each. Just Dont Go Over Board Bro. And There...