I know a couple of people mentioned the linear version of the lamp. I didn't hear any conformation from Tryme. There is a HUGE difference between the linear and compact lamps. A 10.0 compact will kill your chameleon quickly if not used properly (I know, I found out the hard way). I have both 5.0 and 10.0 tube lamp. I am using the 5.0 now because I haven't had a chance to meter the lamps and compare how they function in my cages.