I mistakenly bought this thinking it was a thermostat, so I'm selling it! Brand new, unopened! Thank you! This controller allows you to adjust the output of connected heaters and heat lamps in three stages (100%, 80%, 60%). It can also be connected to a thermostat. * A convenient controller that can adjust the output of heat lamps, heaters, etc. * Body size (width x depth x height): 60 x 40 x 280mm * Body weight: 200g