I've got two of those timers power strips. I was using one per 40 gallon tank. Mine are digital timers. I believe they are made by Zilla (if not Zilla, then ZooMed). I also use similar timer power strips on my fish tanks (although the fish tank timers are a different brand than my reptile timers, they look nearly identical and, I suspect, are made in the same factory). All of the timers tend to "gain" time. Even though I've had the reptile timers for only about 6 months now, one of them is already running 15-16 minutes fast. That being said, I do find them useful for lighting my enclosures (both the fish tanks and my T8). I originally bought the reptile ones to help regulate the heat, but when winter hit, I had to run the CHEs (and the UTHs) 24/7. The best solution for me ended up being a thermostat. I originally bought a ReptiTherm 500 from ZooMed. However, just yesterday (with the completion of my T8 setup), I switched to the Herpstat 2. Although I've only used the Herpstat for one day now, I fell much more comfortable with it than I ever did with the ReptiTherms. Thus, I think you'll be very glad that you purchased the Herpstat. So, the bottom line, IMHO, is use the Herpstat to regulate the heat and, if you want to regulate light, use the timer power strip. If your tank gets enough light from either windows or room lights (my T8 does not), then skip the timer power strip.