I used to grow autos with cfl. You'll only pull about 1/8 an oz of not so good bud with that light. If you want to easily triple that amount get a 2700k cfl. I used the 105 (actual watts) cfls from
www.1000bulbs.com they're only twenty usd and will make a huge impact on your final yield. One of those is enough to grow one super healthy autoflower that will at least give you a half oz of decent bud. Best of luck man. Autos really do respond much better to a 2700k than a 5000k or greater kelvin temp.
My original autoflower set up pics attached. Ahh memories. At any rate you'll see I did have a 5000k temp 105 watter in the mix. I just rotated the plants on the daily (or semi-daily) to make sure all were getting the proper mix of lighting.