We do not ship PrimaLuceLab products to USA, you can order to one of our USA dealers.
Dew heaters
Dew heater is placed on the optical tube to prevent optics dewing. A very common problem especially in winter and in sealed optical tubes, such as refractors or Schmidt-Cassegrain. These dew heaters, 12 V powered, heat the telescope preventing the formation of condensation on the optics.