Using Dew-Not Heater and Binoview Wrap the heater around the tube with red side in, then secure it in place with the VelcroŽ tab. Plug the phono-connector into the controller* (sold separately) and follow the manufacturer's instructions. *Compatible with Kendrick controllers and Dew-Buster. Length 13" (33.0cm) Watts 6.0 Voltage 12v Amperage 0.50 Availability: Usually ships the next business day DN017 888.291.6577 Located in Saint Augustine, FL 32095 By faith we understand that the universe was created by God's command, so that what is seen has been made from things that are not visible Copyright (R) 2017 SmartAstronomy, All rights reserved.