Ok there is much debate as to weather or not certain uvb bulbs are safe to use or not. I know MVB'S are the way to go but I do have some reptisun uvb fluorescent bulbs by zoomed. These are not spiral, more like u shaped tubes. I have gotten many different opinions, some say there great, others say they are crap. I have also heard that since 2008 the prob with the spiral bulbs has been corrected. Just looking for others opinions/thoughts