Growing and Storing Question!

My grow room uses a CFL as a light, I am cheap...sorry!

I was wondering, my CFL looks to be, with the naked eye, the same light range as a normal incandescent light bulb. Are there different types of CFL's that are more of a white light than a soft, golder light, per se?

Another question about storing. I am using a glass jar to store. It has a cork lid. Is that bad? I know the best type of jars are those lids with rubber seals that clamp down. Is the cork air-tight?

Thanks for your help!