Orion 3517 Dew Zapper Pro 4-Channel Control Module

hello I'm Ken with Orion telescopes and binoculars and this is the do zapper Pro do prevention system this is the control panel for it it's got four outputs and you've got controls for the power of each one so the idea what you've got to do is you purchase a heating band design to fit whatever item you want to keep the dew off of in this case is a medium band for medium sized telescopes but we've got them from small to internal or iPS to a finderscope all the way up to a very large one for a big Schmidt Cassegrain telescope so the idea like I said plug in a doob and into one of the four channels and you now have control over the output for most normal applications about 25% is best it'll keep the dew off all night long if you notice that it's a really dewy night you can try get up to 15 maybe 75% if you've already got do form and you want to get rid of it bring it up to 100% wait for th