Keep your astronomical equipment performing at its best with Ozure Dew Heater Bands. These essential 12V RCA-powered heater bands are designed specifically for telescopes and camera lenses to prevent condensation from forming on optical surfaces during nighttime viewing and astrophotography sessions. Available in multiple sizes - 4", 6", 15", 27" and 37" - to fit various optical equipment diameters. The flexible bands wrap securely around your equipment with hook-and-loop fasteners, providing even heat distribution. These dew heaters maintain optimal operating temperature of your optics in humid conditions, ensuring clear views and sharp images throughout your observation or imaging session. The standard RCA connection makes these bands compatible with most astronomy power supplies and dew controllers. Each band features durable construction with reliable heating elements enclosed in weather-resistant material for long-lasting performance under night sky conditions.