SVBONY SV172 400 mm Dew Heater Strip is designed to prevent dew and condensation from forming on telescope optics and camera lenses during extended observing or imaging sessions. It provides gentle, consistent heating to keep optics clear in cold and humid conditions.

Key Features

• Effective dew prevention
  Maintains lens and optical tube temperature above the dew point for clear, fog-free viewing.
• 400 mm length for larger optics
  Suitable for larger telescope tubes, camera lenses, and guide scopes.
• Weather-resistant construction
  Built with waterproof materials for reliable outdoor use in damp and cold environments.
• Energy-efficient heating
  Provides steady low-power warmth without excessive battery drain.
• Simple wrap-around installation
  Easily secures around the optical tube or lens and connects to a compatible power source.