I use the alife 1000 without a problem, it keeps all my heat tape the same degrees. The only thing is that you have to mess with it for a little while to get the temps you want, it fluctuates between three degrees of where you want it so you have to get in between( Right now i have it where the highest it gos is 93 and the lowest 89 and gos up and down throughout the day) But other than that i would buy it again unless I needed it for ALOT of snakes and a huge rack!