Material and construction Made from high quality polyester, this lens dew heater belt is built for outdoor durability and reliable performance. Its rugged construction stands up to the demands of astronomical and general photography, providing long lasting use in the field. Efficient dew removal technology Experience clearer, dew free imaging with our advanced dew belt heater. Ideal for cold conditions where temperature swings cause dew and fog on your telescope or lens. This heater effectively removes moisture, enabling stable, uninterrupted photography. Intelligent temperature control Equipped with smart temperature regulation for faster, more even warming. This improves efficiency, extends the device life, and delivers consistent performance over long shooting sessions. Versatile power compatibility Designed for convenience, it runs from a 12V portable power supply (not included). With a DC5521 connector, it is easy to connect and compatible with a wide range of power sources for reliable operation in the field. Use scenarios - Night sky astrophotography in cold conditions to prevent dew on optics during long exposures - Field photography in humid or damp environments to keep lenses clear - Remote shoots where power sources vary, thanks to versatile DC5521 compatibility and 12V compatibility