I have various stats here including Helix and Ranco but my newest is a VE-100. I really like the VE but the next one I buy will be the VE-300. The 100 model is only on/off (which is ok for what I am using it) whereas the 200 and 300 are proportional OR on/off usable. The 300 has built in night drop (I haven't had a need for that yet) AND a battery for the clock. Also the high/low history and alarm seem like a nice feature. I've gotten all of them from Rich at Reptile Basics, so he gets my money no matter what, but his new stats that he designed himself are great.![]()