I have a hygger similar to above but looks like they don't make my exact heater anymore. Had it for 2 years with no problems. mine has an external controller but awhile back I read too many posts about people having heaters fail on. I'm not sure how the integrated external controller compares to an inkbird or independant controller. I got nervous and bought an inkbird to plug this heater into which is probably unnecessary but more aof a belt and suspenders approach, and I have peace of mind.