Now a convenient fluorescent compact bulb that provides up to a 88 CRI rating with 5000 Kelvin.  This is not quite as ideal as we would like but this is best compact fluorescent bulb currently on the market today.  Where space and functionality are factors limiting the use of full fluorescent tubes, Panasonic has the answer in this energy efficient bulb.  They are rated to last 10,000 hours maintaining 80% of the lumens after 4,000 hours.  We recommend replacing them for use as a full spectrum light every year or after 3000 hours but they can still be used in any regular light fixture as a normal light source for an additional 2 years.   Warning: Only use for 1 hour maximum daily.