cfl,1900 lumens vs soft white 3,420 lumens

ok hears the deal i got a good plant very healthy doing good on 2 cfl 15 watt bulbs 1,900 lumens, i thought id bump it up i have 2, 100 watt soft white bulbs wich is 3,420 lumens all togather? which is better to grow with this is all i have at the moment, Which one would work alot better ? please reply!

Wow... makes me feel better cuz I thought I had poor lighting. Whatever you do dont use incadescents though, they dont do anything. Your best option would be to switch the two 15 watt cfls for 2 CFLs that are 32 watt or more. I think that would be fine for one plant... at least for now.