[Tubes Outer Diameter Below 181mm]
Do you want to keep your telescope lenses from condensing.
Worried about long night photography in the winter.
If you want to heat up a cup of coffee when its cold.
Here comes the Celtic dew heating strip.
525mm long, about 420mm is heating, others for velcro purposes.
Suitable for lens outer diameter below 133mm.
Electrical connection: DC5.5*2.1 (female).
The dew remover operates at 12 volts.
Cloth covered with foam insulation on outer side for maximum efficiency and performance.