People use them both equally with sucess.I have read more research on the reptisuns. I do use the exo terra compacts in my compact hoods 2.0s and some 5.0s , and use Linear " tube"repti sun 5.0 for UVB. So I use both brands and both style of lighting conjoined for some time with no issues. The only reason I used the reptisun was it was a proven bulb and been recommended by many. All my stores carry exo terra though.