The AstroZap Dew Heater for Four-inch Telescopeskeeps warmth directed towards your equipment and saves energy while it keeps your telescope moisture-free!
Wrap the AstroZap Dew Heater Strap around your eyepiece with the blue cloth side applied to where you want the heat. On the flip side of the dew heater strap, you'll find a black velcro closure. Just pull the strap and press the connecting velcro tab to the back of the heater. The elastic holds it firmly in place. By placing the electrical cord on the same side as the velcro fastener, you can prevent excess wear on the cable reducing the chances of snagging the cord on your equipment.
When running full power, the AstroZap Dew Heater draws 0.61 amps and less when operating in normal mode. Each heater comes with a standard six-foot cord and phono-plug connector for 12-volt operation. Although, you'll need adew system controller to supply the power.
AstroZap Product Number: 704