Lunatico Astronomia ZeroDew controller Lunático's ZeroDew system prevents the humidity in your lens.Is the reliable and easy-to-use solution for telescopes, binoculars, and more. 12 Vdc input, 0 – 12 v variable output. 4 regulated outputs. 10 Amp max current Reverse polarity protected input. Pulse modulated output current (PWM). 13 Hz output frequency. Battery discharge protection with visual warning (LED). Interference free. RoHS compliant. Minimal consumption. With 4 options to connect to any power supply or battery: car lighter socket standard batteries with the FASTON connectors bananas 5.2mm standard jack (12V d.c. power supply needed) With 2 options for the dewheather bands: RCA USB (*) (*) To get the most out of the ZeroDew heating tapes with USB connector, please observe the following instructions. Custom-fit ZeroDew heater bands for telescopes and binoculars. ZeroDew controller can be used with: existing resistor (heater) bands, and the Lunatico ones (RCA version). USB-powered option available ZeroDew band types In The Box Lunatico Astronomia ZeroDew controller Manuals & Warranty Lunatico Astronomia ZeroDew System Instruction Sheet User Manual